Upward Straight-Line Embeddings of Directed Graphs into Point Sets.

Alejandro Estrella-Balderrama Fabrizio Frati Stephen G. Kobourov Upward Straight-Line Embeddings of Directed Graphs into Point Sets. 122-133 2008 WG http://dx.doi.org/10.1007/978-3-540-92248-3_12 conf/wg/2008 db/conf/wg/wg2008.html#Estrella-BalderramaFK08