public override double Compare(Node node)
{
var bdn = node as BibliographicDescriptionNode;
if (bdn == null)
{
throw new Exception("Not Bibliographic DescriptionNode");
}
double difference = 0;
difference += TitleNode.Compare(bdn.TitleNode);
if (difference < 0.05 || difference > 0.25)
{
return(difference);
}
difference += AutorRangeNode.Compare(bdn.AutorRangeNode);
difference += PublisherNode.Compare(bdn.PublisherNode);
difference += CityNode.Compare(bdn.CityNode);
difference += YearNode.Compare(bdn.YearNode);
difference += PageCountNode.Compare(bdn.PageCountNode);
return(difference);
}