TY - JOUR AU - Juntao Du AU - Songxiao Li AU - Yanhua Zhang TI - Essential norm of generalized composition operators on Zygmund type spaces and Bloch type spaces JO - Annales Polonici Mathematici PY - 2017 SP - 107 EP - 119 VL - 119 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap170405-12-7/ DO - 10.4064/ap170405-12-7 LA - en ID - 10_4064_ap170405_12_7 ER -