%0 Journal Article
%A Brown, R. C.
%T Differential Operators with Abstract Boundary Conditions
%J Canadian journal of mathematics
%D 1978
%P 262-288
%V 30
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1978-025-2/
%R 10.4153/CJM-1978-025-2
%F 10_4153_CJM_1978_025_2