private void AddReference(IGraphNode referencer, IReference reference)
 {
     foreach (var itemReference in reference.Enumerate())
     {
         AddObjectReference(referencer, itemReference);
     }
 }
 private void AddReference(IGraphNode referencer, IReference reference)
 {
     foreach (var itemReference in reference.Enumerate())
     {
         AddObjectReference(referencer, itemReference);
     }
 }