%0 Journal Article %A S. Ya. Serovaǐskiǐ %T Sequential differentiation and its applications in optimal control problems %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2008 %P 45-56 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2008_7_a5/ %G ru %F IVM_2008_7_a5