TY - BOOK AU - Sobolev S L AU - Broadbent T A A Ed AU - Dawson E R Tr TI - Partial differential equations of mathematical physics SN - 048665964X (pbk) U1 - B334, M9 PY - 1989/// CY - New York Dover Publications,Inc KW - Differential equations KW - Partial KW - Mathematics N1 - Index 421-427p ER -