TY  - BOOK
AU  - Agranovich, M. S.
AU  - Egorov, Yu V.
TI  - Partial differential equations IX: elliptic boundary value problems 
SN  - 3540570446
PY  - 1997///
CY  - Berlin
PB  - Springer-Verlag
KW  - Differential equations, Partial
ER  -