%0 Journal Article %A N. D. Podufalov %T On some characterizations of exponential functions on linear spaces %J Trudy po diskretnoj matematike %D 2004 %P 216-239 %V 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/TDM_2004_8_a14/ %G ru %F TDM_2004_8_a14