%0 Journal Article
%A E. G. Pytkeev
%A A. G. Chentsov
%T On the structure of ultrafilters and properties related to convergence in topological spaces
%J Trudy Instituta matematiki i mehaniki
%D 2014
%P 250-267
%V 20
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TIMM_2014_20_2_a21/
%G ru
%F TIMM_2014_20_2_a21