TY  - JOUR
AU  - T. R. Walsh
TI  - Generation of nonisomorphic maps on a computer
JO  - Doklady Akademii Nauk
PY  - 1980
SP  - 301
EP  - 304
VL  - 255
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1980_255_2_a9/
LA  - ru
ID  - DAN_1980_255_2_a9
ER  -