%0 Journal Article %A V. S. Izhutkin %A M. V. Petropavlovskii %A A. V. Blinov %T The center and the barrier function methods using reduced directions for the nonlinear progamming problem %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1996 %P 30-41 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1996_12_a3/ %G ru %F IVM_1996_12_a3