TY - JOUR AU - V. S. Makarov AU - I. S. Gutsul TI - Noncompact three-dimensional manifolds of constant negative curvature that have finite measure JO - Informatics and Automation PY - 1980 SP - 165 EP - 169 VL - 152 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_1980_152_a9/ LA - ru ID - TRSPY_1980_152_a9 ER -