%0 Journal Article
%A I. D. Stupina
%T Certain properties of $R$- and $R^c$-operations and projective operations, over uncountable systems of sets, 

%J Doklady Akademii Nauk
%D 1970
%P 1248-1250
%V 193
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_193_6_a9/
%G ru
%F DAN_1970_193_6_a9