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@article{CMUC_1986__27_2_a12, author = {Lakajev, S. N.}, title = {Discrete spectrum of operator valued {Friedrichs} models}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {341--357}, publisher = {mathdoc}, volume = {27}, number = {2}, year = {1986}, mrnumber = {857553}, zbl = {0601.45001}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1986__27_2_a12/} }
Lakajev, S. N. Discrete spectrum of operator valued Friedrichs models. Commentationes Mathematicae Universitatis Carolinae, Tome 27 (1986) no. 2, pp. 341-357. http://geodesic.mathdoc.fr/item/CMUC_1986__27_2_a12/