Henning Fernau Serge Gaspers Dieter Kratsch Mathieu Liedloff Daniel Raible Exact Exponential-Time Algorithms for Finding Bicliques in a Graph. 205-209 2009 CTW http://www.lix.polytechnique.fr/ctw09/ctw09-proceedings.pdf#page=217 conf/colognetwente/2009 db/conf/colognetwente/colognetwente2009.html#FernauGKLR09