@article{1183497112, author = {Latshaw, V. V.}, title = {The algebra of self-adjoint boundary-value problems}, journal = {Bull. Amer. Math. Soc.}, volume = {39}, number = {12}, year = {1933}, pages = { 969-978}, language = {en}, url = {http://dml.mathdoc.fr/item/1183497112} }
Latshaw, V. V. The algebra of self-adjoint boundary-value problems. Bull. Amer. Math. Soc., Tome 39 (1933) no. 12, pp. 969-978. http://gdmltest.u-ga.fr/item/1183497112/