%0 Journal Article %A A. A. Korobov %A O. A. Korobov %T On the discriminant of a quadratic field with intermediate fractions of negative norm and the decomposability of its representing polynomial %J Sibirskie èlektronnye matematičeskie izvestiâ %D 2021 %P 319-331 %V 18 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SEMR_2021_18_1_a4/ %G ru %F SEMR_2021_18_1_a4