@article{01194787,
title = {New bounds for union-free families of sets.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {5},
year = {1998},
zbl = {0906.05001},
language = {en},
url = {http://dml.mathdoc.fr/item/01194787}
}
Coppersmith, Don; Shearer, James B. New bounds for union-free families of sets.. The Electronic Journal of Combinatorics [electronic only], Tome 5 (1998) . http://gdmltest.u-ga.fr/item/01194787/