@article{DE_1975_11_9_a24,
     author = {\`E. M. Saak},
     title = {Letter to the editors: {{\textquotedblleft}The} solvability of the {Dirichlet} problem for an elliptic equation of order $2l$ in the class $W_2^{(2l)}${\textquotedblright} {(Differencial'nye} {Uravnenija} 9 (1973), 2048{\textendash}2051)},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1713},
     year = {1975},
     volume = {11},
     number = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_9_a24/}
}