Savage, I RichardSethuraman, J2010-12-032010-12-031966The Annals of Mathematical Statistics. V37, No. 4, P1154-1160http://hdl.handle.net/10263/148enProbability ratioSecond order sequenceLehmann alternativesStopping time of a rank a rank-order sequential probability ratio test based on lehmann alternativesArticle