TY - JOUR AU - Z. Lipecki TI - Tight extensions of group-valued quasi-measures JO - Colloquium Mathematicum PY - 1987 SP - 213 EP - 219 VL - 51 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-51-1-213-219/ DO - 10.4064/cm-51-1-213-219 LA - en ID - 10_4064_cm_51_1_213_219 ER -