TY  - JOUR
AU  - R. I. Tyshkevich
AU  - A. A. Chernyak
TI  - Yet another method of enumerating unmarked combinatorial objects
JO  - Matematičeskie zametki
PY  - 1990
SP  - 98
EP  - 105
VL  - 48
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1990_48_6_a11/
LA  - ru
ID  - MZM_1990_48_6_a11
ER  -