1. Sequential analysis;Wald,1947
2. Optimum character of SPRT;Wald;Ann Math Stat,1948
3. Predictive probability early termination plans for Phase II clinical trials;Herson;Biom,1979
4. Quality control and industrial statistics;Duncan,1965
5. Some notes on lot-by-lot inspection by attributes;Hamaker;Rev Int Stat Inst,1950