%0 Journal Article
%A N. V. Ivanova
%T Some remarks on the comparison of the strength of set-theoretic operations
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1970
%P 34-39
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1970_5_a3/
%G ru
%F IVM_1970_5_a3