TY - JOUR AU - S. K. Singh AU - V. N. Kulkarni TI - Characteristic function of a meromorphic function and its derivative JO - Annales Polonici Mathematici PY - 1973 SP - 123 EP - 133 VL - 28 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-28-2-123-133/ DO - 10.4064/ap-28-2-123-133 LA - en ID - 10_4064_ap_28_2_123_133 ER -