TY - JOUR AU - J. VAN DER MARK TI - On the Functional Equation of Cauchy (Short Communication) JO - Aequationes mathematicae PY - 1973 SP - 307 EP - 308 VL - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AM2_1973__9_136371/ ID - AM2_1973__9_136371 ER -