diff --git a/src/app/test-controller/test-controller.component.html b/src/app/test-controller/test-controller.component.html
index b5dab95eeb749d447ef34d0f432dfec2c963ecbf..4fef71d62a39067c6be5d135e4457c55ade52cd4 100644
--- a/src/app/test-controller/test-controller.component.html
+++ b/src/app/test-controller/test-controller.component.html
@@ -3,7 +3,7 @@
   <mat-spinner></mat-spinner>
 </div>
 <div class="page-body" fxLayout="row" iqbResizeIFrameChild>
-  <div class="tcSidenav" name="sideNav" fxFlex="110px" fxLayout="column" fxLayoutAlign="start center" fxLayoutGap="5px">
+  <div class="tcSidenav" name="sideNav" fxFlex="100px" fxLayout="column" fxLayoutAlign="start center" fxLayoutGap="5px">
     <p>Aufgaben</p>
     <tc-sidenavi-button *ngFor="let u of allUnits" [unitData]="u"></tc-sidenavi-button>
   </div>
diff --git a/src/app/test-controller/test-controller.service.ts b/src/app/test-controller/test-controller.service.ts
index 7e52224409829105030ff576c374a010846ca2fc..28de2e61c1fd89b0d26e9ea8d8e61d808bbbb475 100644
--- a/src/app/test-controller/test-controller.service.ts
+++ b/src/app/test-controller/test-controller.service.ts
@@ -336,22 +336,42 @@ export class UnitDef {
 
             if (oDOM.documentElement.nodeName === 'Unit') {
               // ________________________
+              let definitionRef = '';
               const defElements = oDOM.documentElement.getElementsByTagName('Definition');
+
               if (defElements.length > 0) {
                 const defElement = defElements[0];
                 this.unitDefinition = defElement.textContent;
                 this.unitDefinitionType = defElement.getAttribute('type');
+              } else {
+                const defRefElements = oDOM.documentElement.getElementsByTagName('DefinitionRef');
+
+                if (defRefElements.length > 0) {
+                  const defRefElement = defRefElements[0];
+                  definitionRef = defRefElement.textContent;
+                  this.unitDefinition = '';
+                  this.unitDefinitionType = defRefElement.getAttribute('type');
+                }
+              }
+              if (this.unitDefinitionType.length > 0) {
 
                 return tcs.loadItemplayerOk(auth, this.unitDefinitionType).pipe(
-                  switchMap(ok => of(this.locked = !ok)));
-                // ________________________
-                // const resourcesElements = oDOM.documentElement.getElementsByTagName('Resources');
-                // if (resourcesElements.length > 0) {
-                  // const resourcesElement = resourcesElements[0];
-                  // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
-                  //
-                  // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
-                // }
+                  switchMap(ok => {
+                    if (ok && definitionRef.length > 0) {
+                      return bs.getUnitResourceTxt(auth, definitionRef).pipe(
+                        switchMap(def => {
+                          if (def instanceof ServerError) {
+                            return of(false);
+                          } else {
+                            this.unitDefinition = def as string;
+                            this.locked = false;
+                            return of(true);
+                          }
+                        }));
+                    } else {
+                      return of(this.locked = !ok);
+                    }
+                  }));
               } else {
                 this.label = 'unitdef not found';
                 return of(false); // Def-Element required
diff --git a/src/environments/environment.build.ts b/src/environments/environment.build.ts
index 5632f37e8363b04e97f4c7d4f1cb0d42f110130f..76a2ae170f5a9fd96892913c91cd45f509648274 100644
--- a/src/environments/environment.build.ts
+++ b/src/environments/environment.build.ts
@@ -5,5 +5,5 @@ export const environment = {
   testcenterUrl: '/',
   appName: 'IQB-Testcenter',
   appPublisher: 'IQB - Institut zur Qualitätsentwicklung im Bildungswesen',
-  appVersion: '0.8.1 - 25.9.2018'
+  appVersion: '0.9.0 - 30.9.2018'
 };