%0 Journal Article %A V. I. Arnautov %T Estimation of the number of one-point expansions of a~topology which is given on a~finite set %J Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica %D 2011 %P 17-22 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/BASM_2011_2_a1/ %G en %F BASM_2011_2_a1