diff --git a/src/app/+collection-page/collection-page.component.ts b/src/app/+collection-page/collection-page.component.ts
index 646a8944ee..89567c4a54 100644
--- a/src/app/+collection-page/collection-page.component.ts
+++ b/src/app/+collection-page/collection-page.component.ts
@@ -5,7 +5,6 @@ import { Observable } from 'rxjs/Observable';
 import { Subscription } from 'rxjs/Subscription';
 import { SortDirection, SortOptions } from '../core/cache/models/sort-options.model';
 import { CollectionDataService } from '../core/data/collection-data.service';
-import { ItemDataService } from '../core/data/item-data.service';
 import { PaginatedList } from '../core/data/paginated-list';
 import { RemoteData } from '../core/data/remote-data';
 
@@ -21,8 +20,8 @@ import { PaginationComponentOptions } from '../shared/pagination/pagination-comp
 import { filter, flatMap, map } from 'rxjs/operators';
 import { SearchService } from '../+search-page/search-service/search.service';
 import { PaginatedSearchOptions } from '../+search-page/paginated-search-options.model';
-import { SearchResult } from '../+search-page/search-result.model';
 import { toDSpaceObjectListRD } from '../core/shared/operators';
+import { DSpaceObjectType } from '../core/shared/dspace-object-type.model';
 
 @Component({
   selector: 'ds-collection-page',
@@ -68,18 +67,13 @@ export class CollectionPageComponent implements OnInit, OnDestroy {
         this.metadata.processRemoteData(this.collectionRD$);
         const page = +params.page || this.paginationConfig.currentPage;
         const pageSize = +params.pageSize || this.paginationConfig.pageSize;
-        const sortDirection = +params.page || this.sortConfig.direction;
         const pagination = Object.assign({},
           this.paginationConfig,
           { currentPage: page, pageSize: pageSize }
         );
-        const sort = Object.assign({},
-          this.sortConfig,
-          { direction: sortDirection, field: params.sortField }
-        );
         this.updatePage({
           pagination: pagination,
-          sort: sort
+          sort: this.sortConfig
         });
       }));
 
@@ -91,7 +85,7 @@ export class CollectionPageComponent implements OnInit, OnDestroy {
         scope: this.collectionId,
         pagination: searchOptions.pagination,
         sort: searchOptions.sort,
-        filters: {type: 2}
+        dsoType: DSpaceObjectType.ITEM
       })).pipe(toDSpaceObjectListRD()) as Observable<RemoteData<PaginatedList<Item>>>;
   }
 
diff --git a/src/app/+item-page/full/full-item-page.component.html b/src/app/+item-page/full/full-item-page.component.html
index ba517f0f59..1d0c4ab812 100644
--- a/src/app/+item-page/full/full-item-page.component.html
+++ b/src/app/+item-page/full/full-item-page.component.html
@@ -2,8 +2,8 @@
   <div class="item-page" *ngIf="itemRD?.hasSucceeded" @fadeInOut>
     <div *ngIf="itemRD?.payload as item">
       <ds-item-page-title-field [item]="item"></ds-item-page-title-field>
-      <div class="simple-view-link">
-        <a class="btn btn-outline-primary col-4" [routerLink]="['/items/' + item.id]">
+      <div class="simple-view-link my-3">
+        <a class="btn btn-outline-primary" [routerLink]="['/items/' + item.id]">
           {{"item.page.link.simple" | translate}}
         </a>
       </div>
diff --git a/src/app/+item-page/full/full-item-page.component.scss b/src/app/+item-page/full/full-item-page.component.scss
index 65b9262338..4fe93bbb7a 100644
--- a/src/app/+item-page/full/full-item-page.component.scss
+++ b/src/app/+item-page/full/full-item-page.component.scss
@@ -1,7 +1,10 @@
 @import '../../../styles/variables.scss';
+
 :host {
     div.simple-view-link {
         text-align: center;
-        margin: 20px;
+        a {
+            min-width: 25%;
+        }
     }
 }
\ No newline at end of file
diff --git a/src/app/+search-page/paginated-search-options.model.spec.ts b/src/app/+search-page/paginated-search-options.model.spec.ts
index f12d148f7a..e8688fd84f 100644
--- a/src/app/+search-page/paginated-search-options.model.spec.ts
+++ b/src/app/+search-page/paginated-search-options.model.spec.ts
@@ -2,17 +2,19 @@ import 'rxjs/add/observable/of';
 import { SortDirection, SortOptions } from '../core/cache/models/sort-options.model';
 import { PaginationComponentOptions } from '../shared/pagination/pagination-component-options.model';
 import { PaginatedSearchOptions } from './paginated-search-options.model';
+import { DSpaceObjectType } from '../core/shared/dspace-object-type.model';
+import { SearchFilter } from './search-filter.model';
 
 describe('PaginatedSearchOptions', () => {
   let options: PaginatedSearchOptions;
   const sortOptions = new SortOptions('test.field', SortDirection.DESC);
   const pageOptions = Object.assign(new PaginationComponentOptions(), { pageSize: 40, page: 1 });
-  const filters = { 'f.test': ['value'], 'f.example': ['another value', 'second value'] };
+  const filters = [new SearchFilter('f.test', ['value']), new SearchFilter('f.example', ['another value', 'second value'])];
   const query = 'search query';
   const scope = '0fde1ecb-82cc-425a-b600-ac3576d76b47';
   const baseUrl = 'www.rest.com';
   beforeEach(() => {
-    options = new PaginatedSearchOptions({sort: sortOptions, pagination: pageOptions, filters: filters, query: query, scope: scope});
+    options = new PaginatedSearchOptions({sort: sortOptions, pagination: pageOptions, filters: filters, query: query, scope: scope, dsoType: DSpaceObjectType.ITEM});
   });
 
   describe('when toRestUrl is called', () => {
@@ -25,6 +27,7 @@ describe('PaginatedSearchOptions', () => {
         'size=40&' +
         'query=search query&' +
         'scope=0fde1ecb-82cc-425a-b600-ac3576d76b47&' +
+        'dsoType=ITEM&' +
         'f.test=value,query&' +
         'f.example=another value,query&' +
         'f.example=second value,query'
diff --git a/src/app/+search-page/paginated-search-options.model.ts b/src/app/+search-page/paginated-search-options.model.ts
index c565c5da49..8f4d93b0df 100644
--- a/src/app/+search-page/paginated-search-options.model.ts
+++ b/src/app/+search-page/paginated-search-options.model.ts
@@ -2,6 +2,8 @@ import { SortOptions } from '../core/cache/models/sort-options.model';
 import { PaginationComponentOptions } from '../shared/pagination/pagination-component-options.model';
 import { isNotEmpty } from '../shared/empty.util';
 import { SearchOptions } from './search-options.model';
+import { SearchFilter } from './search-filter.model';
+import { DSpaceObjectType } from '../core/shared/dspace-object-type.model';
 
 /**
  * This model class represents all parameters needed to request information about a certain page of a search request, in a certain order
@@ -10,8 +12,8 @@ export class PaginatedSearchOptions extends SearchOptions {
   pagination?: PaginationComponentOptions;
   sort?: SortOptions;
 
-  constructor(options: {scope?: string, query?: string, filters?: any, pagination?: PaginationComponentOptions, sort?: SortOptions}) {
-    super(options)
+  constructor(options: {scope?: string, query?: string, dsoType?: DSpaceObjectType, filters?: SearchFilter[], pagination?: PaginationComponentOptions, sort?: SortOptions}) {
+    super(options);
     this.pagination = options.pagination;
     this.sort = options.sort;
   }
diff --git a/src/app/+search-page/search-filter.model.ts b/src/app/+search-page/search-filter.model.ts
new file mode 100644
index 0000000000..2f81f67d83
--- /dev/null
+++ b/src/app/+search-page/search-filter.model.ts
@@ -0,0 +1,20 @@
+/**
+ * Represents a search filter
+ */
+import { hasValue } from '../shared/empty.util';
+
+export class SearchFilter {
+  key: string;
+  values: string[];
+  operator: string;
+
+  constructor(key: string, values: string[], operator?: string) {
+    this.key = key;
+    this.values = values;
+    if (hasValue(operator)) {
+      this.operator = operator;
+    } else {
+      this.operator = 'query';
+    }
+  }
+}
diff --git a/src/app/+search-page/search-options.model.spec.ts b/src/app/+search-page/search-options.model.spec.ts
index 7da9348cc4..a624664637 100644
--- a/src/app/+search-page/search-options.model.spec.ts
+++ b/src/app/+search-page/search-options.model.spec.ts
@@ -1,15 +1,17 @@
 import 'rxjs/add/observable/of';
 import { PaginatedSearchOptions } from './paginated-search-options.model';
 import { SearchOptions } from './search-options.model';
+import { SearchFilter } from './search-filter.model';
+import { DSpaceObjectType } from '../core/shared/dspace-object-type.model';
 
 describe('SearchOptions', () => {
   let options: PaginatedSearchOptions;
-  const filters = { 'f.test': ['value'], 'f.example': ['another value', 'second value'] };
+  const filters = [new SearchFilter('f.test', ['value']), new SearchFilter('f.example', ['another value', 'second value'])];
   const query = 'search query';
   const scope = '0fde1ecb-82cc-425a-b600-ac3576d76b47';
   const baseUrl = 'www.rest.com';
   beforeEach(() => {
-    options = new SearchOptions({filters: filters, query: query, scope: scope});
+    options = new SearchOptions({ filters: filters, query: query, scope: scope , dsoType: DSpaceObjectType.ITEM});
   });
 
   describe('when toRestUrl is called', () => {
@@ -19,6 +21,7 @@ describe('SearchOptions', () => {
       expect(outcome).toEqual('www.rest.com?' +
         'query=search query&' +
         'scope=0fde1ecb-82cc-425a-b600-ac3576d76b47&' +
+        'dsoType=ITEM&' +
         'f.test=value,query&' +
         'f.example=another value,query&' +
         'f.example=second value,query'
diff --git a/src/app/+search-page/search-options.model.ts b/src/app/+search-page/search-options.model.ts
index c29d786c58..123cf950f8 100644
--- a/src/app/+search-page/search-options.model.ts
+++ b/src/app/+search-page/search-options.model.ts
@@ -1,6 +1,8 @@
 import { isNotEmpty } from '../shared/empty.util';
 import { URLCombiner } from '../core/url-combiner/url-combiner';
 import 'core-js/library/fn/object/entries';
+import { SearchFilter } from './search-filter.model';
+import { DSpaceObjectType } from '../core/shared/dspace-object-type.model';
 
 /**
  * This model class represents all parameters needed to request information about a certain search request
@@ -8,11 +10,13 @@ import 'core-js/library/fn/object/entries';
 export class SearchOptions {
   scope?: string;
   query?: string;
-  filters?: any;
+  dsoType?: DSpaceObjectType;
+  filters?: SearchFilter[];
 
-  constructor(options: {scope?: string, query?: string, filters?: any}) {
+  constructor(options: {scope?: string, query?: string, dsoType?: DSpaceObjectType, filters?: SearchFilter[]}) {
       this.scope = options.scope;
       this.query = options.query;
+      this.dsoType = options.dsoType;
       this.filters = options.filters;
   }
 
@@ -27,13 +31,15 @@ export class SearchOptions {
     if (isNotEmpty(this.query)) {
       args.push(`query=${this.query}`);
     }
-
     if (isNotEmpty(this.scope)) {
       args.push(`scope=${this.scope}`);
     }
+    if (isNotEmpty(this.dsoType)) {
+      args.push(`dsoType=${this.dsoType}`);
+    }
     if (isNotEmpty(this.filters)) {
-      Object.entries(this.filters).forEach(([key, values]) => {
-        values.forEach((value) => args.push(`${key}=${value},query`));
+      this.filters.forEach((filter: SearchFilter) => {
+        filter.values.forEach((value) => args.push(`${filter.key}=${value},${filter.operator}`));
       });
     }
     if (isNotEmpty(args)) {
diff --git a/src/app/+search-page/search-page.component.spec.ts b/src/app/+search-page/search-page.component.spec.ts
index 63eb0a045b..3ca18ce4c5 100644
--- a/src/app/+search-page/search-page.component.spec.ts
+++ b/src/app/+search-page/search-page.component.spec.ts
@@ -178,4 +178,4 @@ describe('SearchPageComponent', () => {
     });
 
   });
-});
\ No newline at end of file
+})
diff --git a/src/app/+search-page/search-service/search-configuration.service.spec.ts b/src/app/+search-page/search-service/search-configuration.service.spec.ts
index eb10273731..9f2e6d5045 100644
--- a/src/app/+search-page/search-service/search-configuration.service.spec.ts
+++ b/src/app/+search-page/search-service/search-configuration.service.spec.ts
@@ -4,26 +4,27 @@ import { PaginationComponentOptions } from '../../shared/pagination/pagination-c
 import { SortDirection, SortOptions } from '../../core/cache/models/sort-options.model';
 import { PaginatedSearchOptions } from '../paginated-search-options.model';
 import { Observable } from 'rxjs/Observable';
+import { SearchFilter } from '../search-filter.model';
 
 describe('SearchConfigurationService', () => {
   let service: SearchConfigurationService;
   const value1 = 'random value';
-  const value2 = 'another value';
   const prefixFilter = {
     'f.author': ['another value'],
     'f.date.min': ['2013'],
     'f.date.max': ['2018']
   };
-  const defaults = new PaginatedSearchOptions( {
+  const defaults = new PaginatedSearchOptions({
     pagination: Object.assign(new PaginationComponentOptions(), { currentPage: 1, pageSize: 20 }),
     sort: new SortOptions('score', SortDirection.DESC),
     query: '',
     scope: ''
   });
-  const backendFilters = { 'f.author': ['another value'], 'f.date': ['[2013 TO 2018]'] };
+
+  const backendFilters = [new SearchFilter('f.author', ['another value']), new SearchFilter('f.date', ['[2013 TO 2018]'])];
 
   const spy = jasmine.createSpyObj('RouteService', {
-    getQueryParameterValue: Observable.of([value1, value2]),
+    getQueryParameterValue: Observable.of(value1),
     getQueryParamsWithPrefix: Observable.of(prefixFilter)
   });
 
@@ -51,6 +52,15 @@ describe('SearchConfigurationService', () => {
     });
   });
 
+  describe('when getCurrentDSOType is called', () => {
+    beforeEach(() => {
+      service.getCurrentDSOType();
+    });
+    it('should call getQueryParameterValue on the routeService with parameter name \'dsoType\'', () => {
+      expect((service as any).routeService.getQueryParameterValue).toHaveBeenCalledWith('dsoType');
+    });
+  });
+
   describe('when getCurrentFrontendFilters is called', () => {
     beforeEach(() => {
       service.getCurrentFrontendFilters();
@@ -101,6 +111,7 @@ describe('SearchConfigurationService', () => {
       spyOn(service, 'getCurrentSort').and.callThrough();
       spyOn(service, 'getCurrentScope').and.callThrough();
       spyOn(service, 'getCurrentQuery').and.callThrough();
+      spyOn(service, 'getCurrentDSOType').and.callThrough();
       spyOn(service, 'getCurrentFilters').and.callThrough();
     });
 
@@ -113,6 +124,7 @@ describe('SearchConfigurationService', () => {
         expect(service.getCurrentSort).not.toHaveBeenCalled();
         expect(service.getCurrentScope).toHaveBeenCalled();
         expect(service.getCurrentQuery).toHaveBeenCalled();
+        expect(service.getCurrentDSOType).toHaveBeenCalled();
         expect(service.getCurrentFilters).toHaveBeenCalled();
       });
     });
@@ -126,6 +138,7 @@ describe('SearchConfigurationService', () => {
         expect(service.getCurrentSort).toHaveBeenCalled();
         expect(service.getCurrentScope).toHaveBeenCalled();
         expect(service.getCurrentQuery).toHaveBeenCalled();
+        expect(service.getCurrentDSOType).toHaveBeenCalled();
         expect(service.getCurrentFilters).toHaveBeenCalled();
       });
     });
diff --git a/src/app/+search-page/search-service/search-configuration.service.ts b/src/app/+search-page/search-service/search-configuration.service.ts
index 79574f95a7..b4c06e83f3 100644
--- a/src/app/+search-page/search-service/search-configuration.service.ts
+++ b/src/app/+search-page/search-service/search-configuration.service.ts
@@ -6,11 +6,13 @@ import { ActivatedRoute, Params } from '@angular/router';
 import { PaginatedSearchOptions } from '../paginated-search-options.model';
 import { Injectable, OnDestroy } from '@angular/core';
 import { RouteService } from '../../shared/services/route.service';
-import { hasNoValue, isEmpty, isNotEmpty } from '../../shared/empty.util';
+import { hasNoValue, hasValue, isEmpty, isNotEmpty } from '../../shared/empty.util';
 import { RemoteData } from '../../core/data/remote-data';
 import { BehaviorSubject } from 'rxjs/BehaviorSubject';
 import { Subscription } from 'rxjs/Subscription';
 import { getSucceededRemoteData } from '../../core/shared/operators';
+import { SearchFilter } from '../search-filter.model';
+import { DSpaceObjectType } from '../../core/shared/dspace-object-type.model';
 
 /**
  * Service that performs all actions that have to do with the current search configuration
@@ -99,6 +101,15 @@ export class SearchConfigurationService implements OnDestroy {
     });
   }
 
+  /**
+   * @returns {Observable<number>} Emits the current DSpaceObject type as a number
+   */
+  getCurrentDSOType(): Observable<DSpaceObjectType> {
+    return this.routeService.getQueryParameterValue('dsoType')
+      .filter((type) => hasValue(type) && hasValue(DSpaceObjectType[type.toUpperCase()]))
+      .map((type) => DSpaceObjectType[type.toUpperCase()]);
+  }
+
   /**
    * @returns {Observable<string>} Emits the current pagination settings
    */
@@ -133,25 +144,25 @@ export class SearchConfigurationService implements OnDestroy {
   /**
    * @returns {Observable<Params>} Emits the current active filters with their values as they are sent to the backend
    */
-  getCurrentFilters(): Observable<Params> {
+  getCurrentFilters(): Observable<SearchFilter[]> {
     return this.routeService.getQueryParamsWithPrefix('f.').map((filterParams) => {
       if (isNotEmpty(filterParams)) {
-        const params = {};
+        const filters = [];
         Object.keys(filterParams).forEach((key) => {
           if (key.endsWith('.min') || key.endsWith('.max')) {
             const realKey = key.slice(0, -4);
-            if (isEmpty(params[realKey])) {
+            if (hasNoValue(filters.find((filter) => filter.key === realKey))) {
               const min = filterParams[realKey + '.min'] ? filterParams[realKey + '.min'][0] : '*';
               const max = filterParams[realKey + '.max'] ? filterParams[realKey + '.max'][0] : '*';
-              params[realKey] = ['[' + min + ' TO ' + max + ']'];
+              filters.push(new SearchFilter(realKey, ['[' + min + ' TO ' + max + ']']));
             }
           } else {
-            params[key] = filterParams[key];
+            filters.push(new SearchFilter(key, filterParams[key]));
           }
         });
-        return params;
+        return filters;
       }
-      return filterParams;
+      return [];
     });
   }
 
@@ -171,6 +182,7 @@ export class SearchConfigurationService implements OnDestroy {
     return Observable.merge(
       this.getScopePart(defaults.scope),
       this.getQueryPart(defaults.query),
+      this.getDSOTypePart(),
       this.getFiltersPart()
     ).subscribe((update) => {
       const currentValue: SearchOptions = this.searchOptions.getValue();
@@ -190,6 +202,7 @@ export class SearchConfigurationService implements OnDestroy {
       this.getSortPart(defaults.sort),
       this.getScopePart(defaults.scope),
       this.getQueryPart(defaults.query),
+      this.getDSOTypePart(),
       this.getFiltersPart()
     ).subscribe((update) => {
       const currentValue: PaginatedSearchOptions = this.paginatedSearchOptions.getValue();
@@ -241,6 +254,15 @@ export class SearchConfigurationService implements OnDestroy {
     });
   }
 
+  /**
+   * @returns {Observable<string>} Emits the current query string as a partial SearchOptions object
+   */
+  private getDSOTypePart(): Observable<any> {
+    return this.getCurrentDSOType().map((dsoType) => {
+      return { dsoType }
+    });
+  }
+
   /**
    * @returns {Observable<string>} Emits the current pagination settings as a partial SearchOptions object
    */
diff --git a/src/app/core/shared/dspace-object-type.model.ts b/src/app/core/shared/dspace-object-type.model.ts
new file mode 100644
index 0000000000..7e2c1cb678
--- /dev/null
+++ b/src/app/core/shared/dspace-object-type.model.ts
@@ -0,0 +1,7 @@
+export enum DSpaceObjectType {
+  BUNDLE = 'BUNDLE',
+  BITSTREAM = 'BITSTREAM',
+  ITEM = 'ITEM',
+  COLLECTION = 'COLLECTION',
+  COMMUNITY = 'COMMUNITY',
+}
diff --git a/src/app/thumbnail/thumbnail.component.html b/src/app/thumbnail/thumbnail.component.html
index 6221cbaba1..6855adc860 100644
--- a/src/app/thumbnail/thumbnail.component.html
+++ b/src/app/thumbnail/thumbnail.component.html
@@ -1,4 +1,4 @@
 <div class="thumbnail">
-  <img *ngIf="thumbnail" [src]="thumbnail.content" (error)="errorHandler($event)"/>
-  <img *ngIf="!thumbnail" [src]="holderSource | dsSafeUrl"/>
+  <img *ngIf="thumbnail" [src]="thumbnail.content" (error)="errorHandler($event)" class="img-fluid"/>
+  <img *ngIf="!thumbnail" [src]="holderSource | dsSafeUrl" class="img-fluid"/>
 </div>