TY - JOUR AU - L.G. Kovács TI - Groups with regular automorphisms of order four. JO - Mathematische Zeitschrift PY - 1961 SP - 277 EP - 294 VL - 75 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1961__75_169920/ ID - MZ_1961__75_169920 ER -