diff --git a/Projektgruppe_175/src/base/GraphAlgorithm.java b/Projektgruppe_175/src/base/GraphAlgorithm.java
index 7951209..2c189ca 100644
--- a/Projektgruppe_175/src/base/GraphAlgorithm.java
+++ b/Projektgruppe_175/src/base/GraphAlgorithm.java
@@ -75,15 +75,24 @@ public abstract class GraphAlgorithm<T> {
 		AlgorithmNode<T> tempElem;
 
 		if (iter.hasNext()) {
+			
+			// Set minimum to first elements
 			MinElem = algorithmNodes.get(iter.next());
+			
 			while (iter.hasNext()) {
+				
 				tempElem = algorithmNodes.get(iter.next());
-				if (tempElem.value < MinElem.value) {
-					MinElem = tempElem;
+				if (tempElem.value > 0) {
+					if (tempElem.value < MinElem.value) {
+						MinElem = tempElem;
+					}
 				}
+				
 			}
 			iter.remove();
+			
 			return MinElem;
+			
 		}
 
 		return null;