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@article{IVM_1989_8_a1, author = {V. M. Bruk}, title = {On the spectrum of differential operators in a~space of vector functions}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {15--21}, publisher = {mathdoc}, number = {8}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1989_8_a1/} }
V. M. Bruk. On the spectrum of differential operators in a~space of vector functions. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1989), pp. 15-21. http://geodesic.mathdoc.fr/item/IVM_1989_8_a1/