@article{DE_1989_25_1_a19,
     author = {V. M. Govorov and \`E. K. Safiev},
     title = {Membership in class $W_2^1$ of the classical solution of the {Dirichlet} problem for second-order elliptic systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {165--167},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_1_a19/}
}