TY - JOUR AU - Szymon Plewik TI - On some problem of A. Rosłanowski JO - Colloquium Mathematicum PY - 1996 SP - 297 EP - 298 VL - 69 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-69-2-297-298/ DO - 10.4064/cm-69-2-297-298 LA - pl ID - 10_4064_cm_69_2_297_298 ER -