TY  - JOUR
AU  - Valery A. Liskovets
AU  - Alexander D. Mednykh
TI  - On the number of connected and disconnected coverings over a manifold
	
JO  - Ars mathematica contemporanea
PY  - 2009
SP  - 181
EP  - 189
VL  - 2
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.98.ecc/
DO  - 10.26493/1855-3974.98.ecc
LA  - en
ID  - 10_26493_1855_3974_98_ecc
ER  -