TY - JOUR AU - Jr, C. S. Johnson TI - Quasi-multiplicative maps on Baer semigroups JO - Glasgow mathematical journal PY - 1972 SP - 107 EP - 110 VL - 13 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.1017/S001708950000149X/ DO - 10.1017/S001708950000149X ID - 10_1017_S001708950000149X ER -