%0 Journal Article %A V. A. Iskovskikh %T A~simple proof of the irrationality of a~three-dimensional quartic %J Matematičeskie zametki %D 1999 %P 667-673 %V 65 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1999_65_5_a3/ %G ru %F MZM_1999_65_5_a3