%0 Journal Article
%A R. Denchev
%T On commuting selfadjoint extensions of differential operators
%J Sbornik. Mathematics
%D 1971
%P 360-369
%V 13
%N 3
%U http://geodesic.mathdoc.fr/item/SM_1971_13_3_a2/
%G en
%F SM_1971_13_3_a2