TY  - JOUR
AU  - B. A. Sevast'yanov
TI  - On a~connection between the structural characteristics of preimages and images of finite sets for some classes of transformations
JO  - Trudy po diskretnoj matematike
PY  - 1998
SP  - 296
EP  - 304
VL  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TDM_1998_2_a15/
LA  - ru
ID  - TDM_1998_2_a15
ER  -