%0 Journal Article %A V. S. Makarov %A I. S. Gutsul %T Noncompact three-dimensional manifolds of constant negative curvature that have finite measure %J Informatics and Automation %D 1980 %P 165-169 %V 152 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1980_152_a9/ %G ru %F TRSPY_1980_152_a9