TY  - JOUR
AU  - Alon, Noga
AU  - Seymour, Paul
AU  - Thomas, Robin
TI  - A separator theorem for nonplanar graphs
JO  - Journal of the American Mathematical Society
PY  - 1990
SP  - 801
EP  - 808
VL  - 03
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1990-1065053-0/
DO  - 10.1090/S0894-0347-1990-1065053-0
ID  - 10_1090_S0894_0347_1990_1065053_0
ER  -