TY - JOUR AU - Robert Bieri TI - Mayer-Vietoriss Sequences for HNN-Groups and Homological Duality. JO - Mathematische Zeitschrift PY - 1975 SP - 123 EP - 130 VL - 143 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1975__143_172217/ ID - MZ_1975__143_172217 ER -