%0 Journal Article
%A A. G. Pogorelov
%T Partition of a set of approximate operators into simply ordered
%J Doklady Akademii Nauk
%D 1985
%P 559-564
%V 282
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1985_282_3_a11/
%G ru
%F DAN_1985_282_3_a11