@article{1200771826,
author = {Enomoto, Hikoe and Ito, Noboru and Noda, Ryuzaburo},
title = {Tight 4-designs},
journal = {Osaka J. Math.},
volume = {16},
number = {1},
year = {1979},
pages = { 39-43},
language = {en},
url = {http://dml.mathdoc.fr/item/1200771826}
}
Enomoto, Hikoe; Ito, Noboru; Noda, Ryuzaburo. Tight 4-designs. Osaka J. Math., Tome 16 (1979) no. 1, pp. 39-43. http://gdmltest.u-ga.fr/item/1200771826/