@article{GDZPPN002462737, title = {Analysis of PBIB Designs Using Association Matrices.}, journal = {Metrika}, volume = {36}, year = {1989}, pages = {1-6}, zbl = {0668.62055}, url = {http://dml.mathdoc.fr/item/GDZPPN002462737} }
Gupta, S.; Singh, M. Analysis of PBIB Designs Using Association Matrices.. Metrika, Tome 36 (1989) pp. 1-6. http://gdmltest.u-ga.fr/item/GDZPPN002462737/