@article{GDZPPN002452596, title = {A Note on the Optimality of k-Stage Tests.}, journal = {Metrika}, volume = {19}, year = {1972}, pages = {72-75}, zbl = {0181.22103}, url = {http://dml.mathdoc.fr/item/GDZPPN002452596} }
Schmitz, N. A Note on the Optimality of k-Stage Tests.. Metrika, Tome 19 (1972) pp. 72-75. http://gdmltest.u-ga.fr/item/GDZPPN002452596/