@article{GDZPPN002464500, title = {A Note on the E-Optimality of Block Designs.}, journal = {Metrika}, volume = {38}, year = {1991}, pages = {203-214}, zbl = {0735.62071}, url = {http://dml.mathdoc.fr/item/GDZPPN002464500} }
Jacroux, M. A Note on the E-Optimality of Block Designs.. Metrika, Tome 38 (1991) pp. 203-214. http://gdmltest.u-ga.fr/item/GDZPPN002464500/