diff --git a/ADIS_Csharp/ADIS_Csharp.sln b/ADIS_Csharp/ADIS_Csharp.sln
index 0b93a34..a8b8565 100644
--- a/ADIS_Csharp/ADIS_Csharp.sln
+++ b/ADIS_Csharp/ADIS_Csharp.sln
@@ -9,6 +9,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sync-Ueb01-Counter", "Sync-
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sync-Ueb02-Latch", "Sync-Ueb02-Latch\Sync-Ueb02-Latch.csproj", "{BCCFD952-F042-483E-8660-EEAD346E37E5}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sync-Ueb03-WaitPool", "Sync-Ueb03-WaitPool\Sync-Ueb03-WaitPool.csproj", "{6041729C-8528-49A7-B335-1720B46DEFD1}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -27,6 +29,10 @@ Global
 		{BCCFD952-F042-483E-8660-EEAD346E37E5}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{BCCFD952-F042-483E-8660-EEAD346E37E5}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{BCCFD952-F042-483E-8660-EEAD346E37E5}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6041729C-8528-49A7-B335-1720B46DEFD1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6041729C-8528-49A7-B335-1720B46DEFD1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6041729C-8528-49A7-B335-1720B46DEFD1}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6041729C-8528-49A7-B335-1720B46DEFD1}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/ADIS_Csharp/Sync-Ueb03-WaitPool/MyThread.cs b/ADIS_Csharp/Sync-Ueb03-WaitPool/MyThread.cs
index 5efca4a..0fbb0e3 100644
--- a/ADIS_Csharp/Sync-Ueb03-WaitPool/MyThread.cs
+++ b/ADIS_Csharp/Sync-Ueb03-WaitPool/MyThread.cs
@@ -19,7 +19,7 @@ namespace Sync_Ueb03_WaitPool
             Console.WriteLine("warten...");
             lock (synch)
             {
-                Monitor.Wait(this);
+                Monitor.Wait(synch);
             }
             Console.WriteLine("...aufgewacht");
         }
diff --git a/ADIS_Csharp/Sync-Ueb03-WaitPool/TestWaitPool.cs b/ADIS_Csharp/Sync-Ueb03-WaitPool/TestWaitPool.cs
index 7e94be8..ab1a199 100644
--- a/ADIS_Csharp/Sync-Ueb03-WaitPool/TestWaitPool.cs
+++ b/ADIS_Csharp/Sync-Ueb03-WaitPool/TestWaitPool.cs
@@ -13,7 +13,10 @@ namespace Sync_Ueb03_WaitPool
             MyThread myThread = new MyThread(synch);
             new Thread(myThread.Run).Start();
             Thread.Sleep(1000);
-            Monitor.Pulse(synch);
+            lock (synch)
+            {
+                Monitor.Pulse(synch);
+            }
         }
     }
 }