@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/