TY  - JOUR
AU  - R. Tamassia
AU  - G. di Battista
AU  - I.G. Toms
TI  - Area Requirement and Symmetry Display of Planar Upward Drawings.
JO  - Discrete & computational geometry
PY  - 1992
SP  - 381
EP  - 402
VL  - 7
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DCG_1992__7_4_131203/
ID  - DCG_1992__7_4_131203
ER  -