TY  - JOUR
AU  - V. V. Gorlov
TI  - On congruences in closed post classes
JO  - Matematičeskie zametki
PY  - 1973
SP  - 725
EP  - 734
VL  - 13
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1973_13_5_a11/
LA  - ru
ID  - MZM_1973_13_5_a11
ER  -