@article{1177704858, author = {Freeman, G. H.}, title = {Some Further Designs of Type O:PP}, journal = {Ann. Math. Statist.}, volume = {32}, number = {4}, year = {1961}, pages = { 1186-1190}, language = {en}, url = {http://dml.mathdoc.fr/item/1177704858} }
Freeman, G. H. Some Further Designs of Type O:PP. Ann. Math. Statist., Tome 32 (1961) no. 4, pp. 1186-1190. http://gdmltest.u-ga.fr/item/1177704858/