@MethodInformation(author="Alex", date="09.12.2012", description="Gives back a double that describes the minimum number of swords to plowshares of all DieselTraktor")
	protected double minSwordsDiesel() {
		MyIterator it = (MyIterator) traktoren.iterator();
		double min = 0;
		
		while(it.hasNext()) {
				Traktor obj = (Traktor) it.next();
			
			
			if(obj.getMaschine() instanceof DrillMaschine )
			{
				double anz = obj.getMaschine().getDetailOfMaschine();
				
				if(obj instanceof DieselTraktor) {
				
					if((anz < min) || (min == 0))
						min = anz;
				}
			}
		}
		
		return min;
	}