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@article{MMO_1975_33_a1, author = {T. Sabirov}, title = {Some problems in the analytic theory of one-parameter perturbation of linear operators}, journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva}, pages = {67--106}, publisher = {mathdoc}, volume = {33}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MMO_1975_33_a1/} }
T. Sabirov. Some problems in the analytic theory of one-parameter perturbation of linear operators. Trudy Moskovskogo matematičeskogo obŝestva, Trudy Moskovskogo Matematicheskogo Obshchestva, Tome 33 (1975), pp. 67-106. http://geodesic.mathdoc.fr/item/MMO_1975_33_a1/