TY  - BOOK
AU  - Necas, Jindrich
AU  - Tronel, Gerard, Tr.
TI  - Direct methods in the theory of elliptic equations
SN  - 9783642104541
U1  - 515.3533 
PY  - 2012///
CY  - Berlin
PB  - Springer
KW  - Differential equations, Elliptic
KW  - Differential equations, Partial
KW  - Functional analysis
KW  - Mathematics
ER  -