TY  - JOUR
AU  - A. I. Morozov
AU  - O. V. Pochinka
TI  - Combinatorial invariant of Morse-Smale diffeomorphisms on surfaces with orientable heteroclinic
JO  - Žurnal Srednevolžskogo matematičeskogo obŝestva
PY  - 2020
SP  - 71
EP  - 80
VL  - 22
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SVMO_2020_22_1_a4/
LA  - ru
ID  - SVMO_2020_22_1_a4
ER  -