@article{GDZPPN002031167,
title = {Orthogonal systems.},
journal = {Aequationes mathematicae},
volume = {18},
year = {1978},
pages = {322-330},
zbl = {0377.05012},
url = {http://dml.mathdoc.fr/item/GDZPPN002031167}
}
Vanstone, S.A.; Mullin, R.C.; Deza, M. Orthogonal systems.. Aequationes mathematicae, Tome 18 (1978) pp. 322-330. http://gdmltest.u-ga.fr/item/GDZPPN002031167/