%0 Journal Article %A A. V. Ustinov %T Three-dimensional continued fractions and Kloosterman sums %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2015 %P 483-556 %V 70 %N 3 %U http://geodesic.mathdoc.fr/item/RM_2015_70_3_a2/ %G en %F RM_2015_70_3_a2