diff --git a/README.md b/README.md
index 3e766e8530..c7fb356832 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,11 @@
-# DSP APP — Generic user interface of DaSCH Service Platform
+# DSP-APP — Generic user interface of DaSCH Service Platform
 
 [![Github](https://img.shields.io/github/v/tag/dasch-swiss/dsp-app?include_prereleases&label=Github%20tag)](https://github.com/dasch-swiss/dsp-app)
 [![Docker](https://img.shields.io/docker/v/daschswiss/dsp-app?label=Docker%20image)](https://hub.docker.com/r/daschswiss/dsp-app)
 [![CI](https://github.com/dasch-swiss/dsp-app/workflows/CI/badge.svg)](https://github.com/dasch-swiss/dsp-app/actions?query=workflow%3ACI)
 
+> **_NOTE:_**  The current DSP-APP version presents the **admin view** only.
+
 This app is a simple user interface for the Data and Service Center for the Humanities DaSCH, which uses the DSP-API/Knora server application in the backend. It's a system for annotation and linkage of resources in arts and humanities.
 
 DSP-APP implements [DSP-JS-LIB](https://www.npmjs.com/package/@dasch-swiss/dsp-js) to connect with [DSP-API](https://docs.dasch.swiss/developers/knora/api-reference/). DSP-API is a software framework for storing, sharing, and working with primary resources and data in the humanities.
@@ -43,6 +45,16 @@ To get more help on the Angular CLI use `ng help` or go check out the [Angular C
 
 We built the user guidelines and developer documentation with [MkDocs](https://www.mkdocs.org/) in a separate [repository](https://github.com/dasch-swiss/dsp-docs). The user guide is published on [docs.dasch.swiss/user-guide](https://docs.dasch.swiss/user-guide).
 
+## Work on GitHub
+
+### "main" branch
+
+- use the branch "main" to work on the DSP-ADMIN app. Any changes should be created in branches from "main" and should be merged into the "main" branch.
+
+### "develop" branch
+
+- use the branch "develop" to work on the whole DSP-APP app (admin + research parts). Any new developments should be created in branches from "develop" and should be merged into the "develop" branch.
+
 ## Publish a new version to DockerHub
 
 Before publishing:
diff --git a/src/app/app-global.ts b/src/app/app-global.ts
index b773f50f75..0b27d2d07c 100644
--- a/src/app/app-global.ts
+++ b/src/app/app-global.ts
@@ -52,12 +52,13 @@ export class AppGlobal {
             route: '/projects',
             icon: 'assignment'
         },
-        {
+        // label to reactivate when dsp-app will be used as a research platform again: -->
+        /* {
             label: 'My Collections',
             shortLabel: 'Collections',
             route: '/collections',
             icon: 'star'
-        },
+        }, */
         {
             label: 'My Account',
             shortLabel: 'Account',
diff --git a/src/app/app-routing.module.ts b/src/app/app-routing.module.ts
index 60d0737ded..d1770a0c29 100644
--- a/src/app/app-routing.module.ts
+++ b/src/app/app-routing.module.ts
@@ -118,11 +118,11 @@ const routes: Routes = [
         component: UserComponent,
         canActivate: [AuthGuard]
     },
-    {
+    /* {
         path: 'collections',
         component: UserComponent,
         canActivate: [AuthGuard]
-    },
+    }, */
     {
         path: 'system',
         component: SystemComponent,
@@ -143,7 +143,7 @@ const routes: Routes = [
             }
         ]
     },
-    {
+    /* {
         path: 'search',
         children: [
             {
@@ -155,12 +155,12 @@ const routes: Routes = [
                 component: ResultsComponent
             }
         ]
-    },
-    {
+    }, */
+    /* {
         path: 'resource/:id',
         component: ResourceComponent,
         runGuardsAndResolvers: 'always'
-    },
+    }, */
     {
         path: 'cookie-policy',
         component: CookiePolicyComponent
diff --git a/src/app/main/header/header.component.html b/src/app/main/header/header.component.html
index bf12a8d177..6a60ff2a48 100644
--- a/src/app/main/header/header.component.html
+++ b/src/app/main/header/header.component.html
@@ -11,14 +11,15 @@ <h1 class="mat-headline phone-tablet-only">DSP</h1>
     <span class="fill-remaining-space"></span>
 
     <!-- search-panel (in desktop and tablet version) -->
-    <span class="action">
-        <dsp-search-panel
+   <!--  <span class="action"> -->
+        <!-- button to reactivate when dsp-app will be used as a research platform again: -->
+        <!-- <dsp-search-panel
             [projectfilter]="true"
             [advanced]="true"
             [expert]="true"
             (search)="doSearch($event)">
-        </dsp-search-panel>
-         <!-- advanced and expert search (in desktop and tablet version) -->
+        </dsp-search-panel> -->
+         <!-- to keep? > advanced and expert search (in desktop and tablet version) -->
          <!-- <span class="other-search-link">
             <button mat-button color="primary" class="advanced-search-link" routerLink="/search/advanced">
                 <span>Advanced search</span>
@@ -27,7 +28,7 @@ <h1 class="mat-headline phone-tablet-only">DSP</h1>
                 <span>Expert search</span>
             </button>
         </span> -->
-    </span>
+   <!--  </span> -->
 
     <span class="fill-remaining-space desktop-only"></span>
 
@@ -38,9 +39,10 @@ <h1 class="mat-headline phone-tablet-only">DSP</h1>
 
     <!-- action tools: info menu, select language, login button, user menu -->
     <span class="action">
-        <button mat-icon-button *ngIf="session" aria-label="Add a new resource" (click)="openNewResourceForm('createResource')" class="main-toolbar-button new-resource" >
+        <!-- button to reactivate when dsp-app will be used as a research platform again: -->
+        <!-- <button mat-icon-button *ngIf="session" aria-label="Add a new resource" (click)="openNewResourceForm('createResource')" class="main-toolbar-button new-resource" >
             <mat-icon>add_circle_outline</mat-icon>
-        </button>
+        </button> -->
 
         <button mat-button [routerLink]="'/help'" class="main-toolbar-button help">Help</button>
 
@@ -58,7 +60,8 @@ <h1 class="mat-headline phone-tablet-only">DSP</h1>
 </div>
 
 <!-- search-panel (in phone version) -->
-<div class="search-panel-phone" *ngIf="show">
+<!-- div to reactivate when dsp-app will be used as a research platform again: -->
+<!-- <div class="search-panel-phone" *ngIf="show">
     <dsp-fulltext-search class="dsp-fulltext-search" (search)="doSearch($event)" [projectfilter]="true">
     </dsp-fulltext-search>
-</div>
+</div> -->