%0 Journal Article %A N. A. Shanin %T Georg Сantor as the author of constructions playing fundamental roles in constructive mathematics %J Zapiski Nauchnykh Seminarov POMI %D 1995 %P 5-22 %V 220 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1995_220_a0/ %G ru %F ZNSL_1995_220_a0