Kristaly, A.
Variational principles in mathematical physics, geometry and economics - Cambridge Cambridge University Press 2010 - xv, 368p. - Encyclopedia of mathematcs and its applications. 136. .
978-0-521-11782-1
Variational principles in mathematical physics, geometry and economics - Cambridge Cambridge University Press 2010 - xv, 368p. - Encyclopedia of mathematcs and its applications. 136. .
978-0-521-11782-1