TY  - BOOK
AU  - Giaquinta Mariano
AU  - Modica Giuseppe
TI  - Mathematical analysis: an introduction to functions of several variables
SN  - 978-0-8176-4509-0.
U1  - 515 
PY  - 2009///
CY  - Berlin
PB  - Birkhauser
KW  - Mathematical analysis
ER  -