TY - JOUR AU - Wells, James TI - On the Zeros of Functions with Derivatives in H 1 and H ∞ JO - Canadian journal of mathematics PY - 1970 SP - 342 EP - 347 VL - 22 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-042-x/ DO - 10.4153/CJM-1970-042-x ID - 10_4153_CJM_1970_042_x ER -