%0 Journal Article
%A L. I. Feigin
%T The distinguishability of operations in a schedule
%J Doklady Akademii Nauk
%D 1979
%P 47-51
%V 244
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1979_244_1_a8/
%G ru
%F DAN_1979_244_1_a8