TY - JOUR AU - McFadden, R. B. TI - Unit-regular orthodox semigroups JO - Glasgow mathematical journal PY - 1984 SP - 229 EP - 240 VL - 25 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500005656/ DO - 10.1017/S0017089500005656 ID - 10_1017_S0017089500005656 ER -