@article{1183525379, author = {de Branges, Louis}, title = {Invariant subspaces of nonselfadjoint transformations}, journal = {Bull. Amer. Math. Soc.}, volume = {69}, number = {4}, year = {1963}, pages = { 587-590}, language = {en}, url = {http://dml.mathdoc.fr/item/1183525379} }
de Branges, Louis. Invariant subspaces of nonselfadjoint transformations. Bull. Amer. Math. Soc., Tome 69 (1963) no. 4, pp. 587-590. http://gdmltest.u-ga.fr/item/1183525379/