共 20 条
[1]
[Anonymous], USPEKHI MAT NAUK
[2]
[Anonymous], 2001, T MAT I STEKLOVA
[3]
Berikelashvili G.K., 2008, DIFF URAVN, V44, P359
[4]
Dzhokhadze O. M., 2008, Mat. Zametki, V84, P693
[5]
Fikhtengol'ts G.M., 1969, KURS DIFFERENTSIALNO
[6]
GILBARG D., 2015, Elliptic Partial Differential Equations of Second Order
[7]
Goman O.G., 1968, VESTN MOSKOV U MAT M, P84