%0 Journal Article %T Asymptotic Behavior of Densities for Stochastic Functional Differential Equations %A Akihiro Kitagawa %A Atsushi Takeuchi %J International Journal of Stochastic Analysis %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/537023 %U http://dx.doi.org/10.1155/2013/537023