@article{1029001666, author = {Smith, Martha K.}, title = {Spectra of operator equations.}, journal = {Michigan Math. J.}, volume = {22}, number = {3}, year = {1976}, pages = { 151-153}, language = {en}, url = {http://dml.mathdoc.fr/item/1029001666} }
Smith, Martha K. Spectra of operator equations.. Michigan Math. J., Tome 22 (1976) no. 3, pp. 151-153. http://gdmltest.u-ga.fr/item/1029001666/