@article{GDZPPN002027291, title = {Inequalities for f-designs with Repeated Blocks (Short Communication)}, journal = {Aequationes mathematicae}, volume = {9}, year = {1973}, pages = {312-313}, url = {http://dml.mathdoc.fr/item/GDZPPN002027291} }
MENDELSOHN, N.S.; HO, Y.S. Inequalities for f-designs with Repeated Blocks (Short Communication). Aequationes mathematicae, Tome 9 (1973) pp. 312-313. http://gdmltest.u-ga.fr/item/GDZPPN002027291/