@article{IVM_1961_6_a17,
     author = {S. D. \`Eidel'man and S. D. Ivasishen and F. O. Porper},
     title = {Liouville theorems for systems which are parabolic in the sense of {G.} {E.~S̆ilov}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {169--179},
     year = {1961},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1961_6_a17/}
}