@article{1183500533,
author = {Rosser, Barkley and Walker, R. J.},
title = {On the transformation group for diabolic magic squares of order four},
journal = {Bull. Amer. Math. Soc.},
volume = {44},
number = {11},
year = {1938},
pages = { 416-420},
language = {en},
url = {http://dml.mathdoc.fr/item/1183500533}
}
Rosser, Barkley; Walker, R. J. On the transformation group for diabolic magic squares of order four. Bull. Amer. Math. Soc., Tome 44 (1938) no. 11, pp. 416-420. http://gdmltest.u-ga.fr/item/1183500533/