TY - JOUR AU - LAWRENCE ETIGSON TI - Equivalence of 'Cube' and 'Octahedron' Functional Equations (Short Communication) JO - Aequationes mathematicae PY - 1973 SP - 306 EP - 307 VL - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AM2_1973__9_136369/ ID - AM2_1973__9_136369 ER -