@article{GDZPPN002465779, title = {Bounds on the Efficiency of the Residual Design of Extended BIB Designs.}, journal = {Metrika}, volume = {40}, year = {1993}, pages = {191-201}, zbl = {0770.62058}, url = {http://dml.mathdoc.fr/item/GDZPPN002465779} }
Kageyama, Sanpei; Setoya, Hiroshi. Bounds on the Efficiency of the Residual Design of Extended BIB Designs.. Metrika, Tome 40 (1993) pp. 191-201. http://gdmltest.u-ga.fr/item/GDZPPN002465779/