@article{01413177, title = {Some pairwise balanced designs.}, journal = {The Electronic Journal of Combinatorics [electronic only]}, volume = {7}, year = {2000}, zbl = {0938.05007}, language = {en}, url = {http://dml.mathdoc.fr/item/01413177} }
Greig, Melcom. Some pairwise balanced designs.. The Electronic Journal of Combinatorics [electronic only], Tome 7 (2000) . http://gdmltest.u-ga.fr/item/01413177/