%0 Journal Article %A A. V. Pukhlikov %T Birational automorphisms of a three-dimensional quartic with a quadratic singularity %J Sbornik. Mathematics %D 1989 %P 457-482 %V 63 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1989_63_2_a12/ %G en %F SM_1989_63_2_a12