@article{IVM_1988_8_a2,
     author = {K. Kh. Boǐmatov},
     title = {Strongly degenerate elliptic differential operators of the {Triebel} class},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {39--47},
     year = {1988},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1988_8_a2/}
}