@article{GDZPPN002027461, title = {Equivalence of 'Cube' and 'Octahedron' Functional Equations.}, journal = {Aequationes mathematicae}, volume = {10}, year = {1974}, pages = {50-56}, zbl = {0279.39005}, url = {http://dml.mathdoc.fr/item/GDZPPN002027461} }
Etigson, Lawrence. Equivalence of 'Cube' and 'Octahedron' Functional Equations.. Aequationes mathematicae, Tome 10 (1974) pp. 50-56. http://gdmltest.u-ga.fr/item/GDZPPN002027461/