%0 Journal Article %A Roman Ger %T On some functional equations with a restricted domain, II %J Fundamenta Mathematicae %D 1978 %P 249-272 %V 98 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-98-3-249-272/ %R 10.4064/fm-98-3-249-272 %G en %F 10_4064_fm_98_3_249_272