TY  - BOOK
AU  - Dezin A A
AU  - Boas R P
TI  - Partial differential equations: an introduction to a general theory of linear boundary value problems
U1  - 515.353 
PY  - 1987///
CY  - Berlin
PB  - Springer Verlag
KW  - Partial differential equations
N1  - Tr from the Russian
ER  -