@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/