TY  - JOUR
AU  - V. N. Sachkov
TI  - Asymptotics of the number of $t$-minimal coverings of a~set
JO  - Diskretnaya Matematika
PY  - 1993
SP  - 36
EP  - 44
VL  - 5
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DM_1993_5_1_a1/
LA  - ru
ID  - DM_1993_5_1_a1
ER  -