@article{GDZPPN002027704,
title = {Inequalities for t-Designs with Repeated Blocks.},
journal = {Aequationes mathematicae},
volume = {10},
year = {1974},
pages = {212-222},
zbl = {0284.05016},
url = {http://dml.mathdoc.fr/item/GDZPPN002027704}
}
Mendelsohn, N.S.; Ho, Y.S. Inequalities for t-Designs with Repeated Blocks.. Aequationes mathematicae, Tome 10 (1974) pp. 212-222. http://gdmltest.u-ga.fr/item/GDZPPN002027704/