TY - JOUR AU - Janusz Matkowski TI - Affine and convex functions with respect to the logarithmic mean JO - Colloquium Mathematicum PY - 2003 SP - 217 EP - 230 VL - 95 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm95-2-6/ DO - 10.4064/cm95-2-6 LA - en ID - 10_4064_cm95_2_6 ER -