@article{DAN_1964_154_5_a5,
     author = {A. V. Kuzhel'},
     title = {On non-selfadjoint operators generated by {Jacobian} matrices},
     journal = {Doklady Akademii Nauk},
     pages = {1027--1029},
     year = {1964},
     volume = {154},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_154_5_a5/}
}