%0 Journal Article %A Ya. I. Zabotin %A I. N. Dan'shin %T Algorithms with combination, parametrization and two-sided approximation in the center method %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1998 %P 40-48 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1998_12_a4/ %G ru %F IVM_1998_12_a4