TY  - BOOK
AU  - Kristaly, Alexandru
TI  - Variation principles in mathematical physics,geometry, and economics: Qualitative Analysis of Nonlinear Equations and unilateral problems
SN  - 978-0-521-11782-1
PY  - 2010///
CY  - Cambridge
PB  - Cambridge university press
KW  - Calculus of variations
ER  -