An Improved Lower Bound for Crossing Numbers.

Hristo Djidjev Imrich Vrto An Improved Lower Bound for Crossing Numbers. 96-101 2001 conf/gd/2001 Graph Drawing http://link.springer.de/link/service/series/0558/bibs/2265/22650096.htm db/conf/gd/gd2001.html#DjidjevV01