TY  - GEN
AU  - Kristaly, Alexandru
AU  - Radelescu, V.D.
AU  - Varga, Cs. Gy
TI  - Variational principles in mathematical physics, geometry and economics: qualitative analysis of nonlinear equations and unilateral problems
T2  - (Encyclopedia of mathematics and its applications; 136)
SN  - 9780521117821
PY  - 2010///
CY  - New York
PB  - Cambridge University press
KW  - Calculus of variations
ER  -