%0 Journal Article
%A Patrick Healy
%A Karol Lynch
%T Building Blocks of Upward Planar Digraphs
%J Journal of Graph Algorithms and Applications
%D 2007
%P 3-44
%V 11
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00135/
%R 10.7155/jgaa.00135
%G en
%F JGAA_2007_11_1_a0