%0 Journal Article %A A. N. Karpov %T On the representation of numbers by integral isotropic quadratic forms %J Zapiski Nauchnykh Seminarov POMI %D 1986 %P 66-67 %V 151 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1986_151_a6/ %G ru %F ZNSL_1986_151_a6