@article{IVM_1998_5_a5,
     author = {N. I. Kipriyanova},
     title = {A~mean-value theorem for {a~B-polyharmonic} equation},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {31--34},
     publisher = {mathdoc},
     number = {5},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1998_5_a5/}
}