@article{IVM_1973_3_a3,
     author = {M. Sh. Birman and M. Z. Solomyak},
     title = {Equivalent renormings of $W_p^r$ classes in the case of partitioning of the domain},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {19--27},
     publisher = {mathdoc},
     number = {3},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1973_3_a3/}
}