%0 Journal Article %A D. M. Ivanov %T On cosets of extremal doubly even codes of length 48 %J Zapiski Nauchnykh Seminarov POMI %D 1991 %P 91-100 %V 191 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1991_191_a7/ %G ru %F ZNSL_1991_191_a7