TY - JOUR AU - Protas, David TI - Derivatives of Blaschke Products and Model Space Functions JO - Canadian mathematical bulletin PY - 2020 SP - 716 EP - 725 VL - 63 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/S0008439519000675/ DO - 10.4153/S0008439519000675 ID - 10_4153_S0008439519000675 ER -