TY - BOOK AU - Nazarov Sergey A AU - Plamenevsky Boris A TI - Elliptic problems in domains with piecewise smooth boundaries SN - 3-11-013522-1 U1 - 515.353 PY - 1994/// CY - Berlin PB - Walter de Gruyter KW - Boundary value problems KW - Elliptic differential equations ER -