%0 Journal Article %A Z. I. Borevich %T Periodicity of residues of the number of finite labeled $T_0$-topologies %J Zapiski Nauchnykh Seminarov POMI %D 1982 %P 32-36 %V 114 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1982_114_a3/ %G ru %F ZNSL_1982_114_a3