public List <string> RefStructFind3(List <string> allStruct)
{
List <string> refStruct = new List <string>();
List <KeyValuePair <string, double> > refS = dMeasure.GetReferenceList(allStruct);
refStruct.Add(refS[0].Key);
refStruct.Add(refS[refS.Count - 1].Key);
return(refStruct);
}