%0 Journal Article %A S. Ya. Serovaǐskiǐ %T An approximate solution of an optimal control problem for a singular equation of elliptic type with a nonsmooth nonlinearity %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2004 %P 80-86 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2004_1_a9/ %G ru %F IVM_2004_1_a9