TY - JOUR AU - Kuřil, Martin AU - Szendrei, Mária B. TI - Extensions by inverse semigroups andλ-semidirect products JO - Glasgow mathematical journal PY - 1999 SP - 355 EP - 367 VL - 41 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089599000373/ DO - 10.1017/S0017089599000373 ID - 10_1017_S0017089599000373 ER -