TY  - JOUR
AU  - David Eppstein
TI  - Upright-Quad Drawing of st-Planar Learning Spaces
JO  - Journal of Graph Algorithms and Applications
PY  - 2008
SP  - 51
EP  - 72
VL  - 12
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00159/
DO  - 10.7155/jgaa.00159
LA  - en
ID  - JGAA_2008_12_1_a3
ER  -