%0 Journal Article %A Achdou, Yves %A Tchou, Nicoletta %T Variational analysis for the Black and Scholes equation with stochastic volatility %J ESAIM: Modélisation mathématique et analyse numérique %D 2002 %P 373-395 %V 36 %N 3 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an:2002018/ %R 10.1051/m2an:2002018 %G en %F M2AN_2002__36_3_373_0