@article{1183525957, author = {Beals, R. W.}, title = {A note on the adjoint of a perturbed operator}, journal = {Bull. Amer. Math. Soc.}, volume = {70}, number = {6}, year = {1964}, pages = { 314-315}, language = {en}, url = {http://dml.mathdoc.fr/item/1183525957} }
Beals, R. W. A note on the adjoint of a perturbed operator. Bull. Amer. Math. Soc., Tome 70 (1964) no. 6, pp. 314-315. http://gdmltest.u-ga.fr/item/1183525957/