TY  - BOOK
AU  - Badiale, Marino
AU  - Serra, Enrico
TI  - Semilinear elliptic equations for beginners: existence results via the variational approach
SN  - 9780857292261
U1  - 515.3533 
PY  - 2011///
CY  - London
PB  - Springer
KW  - Elliptic equations
ER  -