%0 Journal Article
%A Malik, M. A.
%T Some Remarks on Abstract Differential Operators
%J Canadian mathematical bulletin
%D 1971
%P 445-447
%V 14
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-079-7/
%R 10.4153/CMB-1971-079-7
%F 10_4153_CMB_1971_079_7