Shuji Sato Kazuo Misue Jiro Tanaka Readable Representations for Large-Scale Bipartite Graphs. 831-838 2008 KES (2) http://dx.doi.org/10.1007/978-3-540-85565-1_103 conf/kes/2008-2 db/conf/kes/kes2008-2.html#SatoMT08