%0 Journal Article %T Sergei Savost'yanovich Goncharov (on his 50th birthday) %J Algebra i logika %D 2001 %P I-III %V 40 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_2001_40_5_a0/ %G ru %F AL_2001_40_5_a0