Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1991__41_4_a1, author = {Pituk, Michal}, title = {Adjoint operators and boundary value problems for linear differential equations}, journal = {Mathematica slovaca}, pages = {351--357}, publisher = {mathdoc}, volume = {41}, number = {4}, year = {1991}, mrnumber = {1149043}, zbl = {0753.34009}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1991__41_4_a1/} }
Pituk, Michal. Adjoint operators and boundary value problems for linear differential equations. Mathematica slovaca, Tome 41 (1991) no. 4, pp. 351-357. http://geodesic.mathdoc.fr/item/MASLO_1991__41_4_a1/