TY - JOUR AU - E. Śliwiński TI - On the oscillation properties of certain power series JO - Commentationes Mathematicae PY - 1969 SP - 267 EP - 271 VL - 12 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/cm.v12i2.5149/ DO - 10.14708/cm.v12i2.5149 LA - pl ID - 10_14708_cm_v12i2_5149 ER -