%0 Journal Article %A D. K. Faddeev %T Group of divisor classes on the curve defined by the equation $x^4+y^4=1$ %J Doklady Akademii Nauk %D 1960 %P 776-777 %V 134 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_134_4_a8/ %G ru %F DAN_1960_134_4_a8