@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/