%0 Journal Article %A Brown, R. C. %T The Operator Theory of Generalized Boundary Value Problems %J Canadian journal of mathematics %D 1976 %P 486-512 %V 28 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1976-050-4/ %R 10.4153/CJM-1976-050-4 %F 10_4153_CJM_1976_050_4