%0 Journal Article
%A V. P. Orevkov
%T On non-lengthening applications of equality rules
%J Zapiski Nauchnykh Seminarov POMI
%D 1969
%P 152-156
%V 16
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1969_16_a16/
%G ru
%F ZNSL_1969_16_a16