TY - JOUR AU - Martin Tretkoff TI - The Residual Finiteness of Certain Amalgameted Free Products. JO - Mathematische Zeitschrift PY - 1973 SP - 179 EP - 182 VL - 132 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1973__132_171919/ ID - MZ_1973__132_171919 ER -