%0 Journal Article %A L. D. Faddeev %T Expansion in eigenfunctions of the Laplace operator on the fundamental domain of a discrete group on the Lobachevski plane %J Trudy Moskovskogo matematičeskogo obŝestva %D 1967 %P 323-350 %V 17 %I mathdoc %U http://geodesic.mathdoc.fr/item/MMO_1967_17_a9/ %G ru %F MMO_1967_17_a9