TY - JOUR AU - Bergweiler, Walter TI - Non-Real Periodic Points of Entire Functions JO - Canadian mathematical bulletin PY - 1997 SP - 271 EP - 275 VL - 40 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1997-033-x/ DO - 10.4153/CMB-1997-033-x ID - 10_4153_CMB_1997_033_x ER -