@article{1138036484,
author = {Ueda, Hideharu},
title = {An extremal problem associated with the spread relation. I.},
journal = {Kodai Math. J.},
volume = {5},
number = {1},
year = {1982},
pages = { 71-83},
language = {en},
url = {http://dml.mathdoc.fr/item/1138036484}
}
Ueda, Hideharu. An extremal problem associated with the spread relation. I.. Kodai Math. J., Tome 5 (1982) no. 1, pp. 71-83. http://gdmltest.u-ga.fr/item/1138036484/