TY - JOUR AU - Kazimierz Nikodem AU - Szymon Wasowicz TI - A sandwich theorem and Hyers-Ulam stability of affine functions. JO - Aequationes mathematicae PY - 1995 SP - 160 EP - 164 VL - 49 IS - 1-2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AM2_1995__49_1-2_182478/ ID - AM2_1995__49_1-2_182478 ER -