@article{IVM_1965_2_a7,
     author = {F. Z. Ziatdinov},
     title = {The spectrum of a linear second-order differential operator in a {Hilbert} space of vector-functions with values in an abstract {Hilbert} space. {II}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {69--76},
     publisher = {mathdoc},
     number = {2},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1965_2_a7/}
}