TY - JOUR AU - W. OkrasiƄski TI - On a certain nonlinear equation JO - Colloquium Mathematicum PY - 1980 SP - 345 EP - 349 VL - 43 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-43-2-345-349/ DO - 10.4064/cm-43-2-345-349 LA - en ID - 10_4064_cm_43_2_345_349 ER -