%0 Journal Article %A Alexander Shapovalov %A Andrey Trifonov %A Elena Masalova %T Nonlinear Fokker–Planck Equation in the Model of Asset Returns %J Symmetry, integrability and geometry: methods and applications %D 2008 %V 4 %U http://geodesic.mathdoc.fr/item/SIGMA_2008_4_a37/ %G en %F SIGMA_2008_4_a37