@article{1177699179,
author = {John, Peter W. M.},
title = {On Identity Relationships for $2\_{n - r}$ Designs Having Words of Equal Length},
journal = {Ann. Math. Statist.},
volume = {37},
number = {6},
year = {1966},
pages = { 1842-1843},
language = {en},
url = {http://dml.mathdoc.fr/item/1177699179}
}
John, Peter W. M. On Identity Relationships for $2_{n - r}$ Designs Having Words of Equal Length. Ann. Math. Statist., Tome 37 (1966) no. 6, pp. 1842-1843. http://gdmltest.u-ga.fr/item/1177699179/