%0 Journal Article
%A L. E. Sternin
%T The boundary of the region of existence of optimal nozzles free of shock waves
%J Doklady Akademii Nauk
%D 1961
%P 335-336
%V 139
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1961_139_2_a19/
%G ru
%F DAN_1961_139_2_a19