TY  - JOUR
AU  - B. N. Ivanov
TI  - A direct method for calculating cell cycles of~a~block~map of a simple planar graph
JO  - Prikladnaâ diskretnaâ matematika
PY  - 2022
SP  - 69
EP  - 83
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PDM_2022_4_a6/
LA  - ru
ID  - PDM_2022_4_a6
ER  -