TY - JOUR AU - V. Faber AU - M. Kuczma AU - J. Mycielski TI - Some models of plane geometries and a functional equation JO - Colloquium Mathematicum PY - 1991 SP - 279 EP - 281 VL - 62 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-62-2-279-281/ DO - 10.4064/cm-62-2-279-281 LA - en ID - 10_4064_cm_62_2_279_281 ER -