TY - JOUR AU - Regina Kleine TI - Discreteness Conditions for the Laplacian on Complete, Non-Compact Riemannian Manifolds. JO - Mathematische Zeitschrift PY - 1988 SP - 127 EP - 142 VL - 198 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1988__198_3_173915/ ID - MZ_1988__198_3_173915 ER -