Emilio Di Giacomo Luca Grilli Giuseppe Liotta Drawing Bipartite Graphs on Two Parallel Convex Curves. 97-112 2008 12 J. Graph Algorithms Appl. 1 http://jgaa.info/accepted/2008/DiGiacomoGrilliLiotta2008.12.1.pdf db/journals/jgaa/jgaa12.html#GiacomoGL08