@article{DAN_1980_251_5_a6,
     author = {V. G. Maz'ya and T. O. Shaposhnikova},
     title = {Requirements on the boundary in the $L_p$-theory of elliptic boundary value problems},
     journal = {Doklady Akademii Nauk},
     pages = {1055--1059},
     publisher = {mathdoc},
     volume = {251},
     number = {5},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_251_5_a6/}
}