TY  - JOUR
AU  - A. K. Kel'mans
TI  - Matroids and the theorems of~Whitney on~$2$-isomorphism and planarity of~graphs
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1988
SP  - 239
EP  - 241
VL  - 43
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1988_43_5_a21/
LA  - en
ID  - RM_1988_43_5_a21
ER  -