TY - JOUR AU - Włodzimierz Fechner AU - Justyna Sikorska TI - On the Stability of Orthogonal Additivity JO - Bulletin of the Polish Academy of Sciences. Mathematics PY - 2010 SP - 23 EP - 30 VL - 58 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ba58-1-3/ DO - 10.4064/ba58-1-3 LA - en ID - 10_4064_ba58_1_3 ER -