1a8857b03346d310VgnVCM100000c2b1d38dRCRDapproved/UMICH/stats/Home/People/Faculty/Faculty PublicationsAsymptotic expansions in boundary crossing problemse98857b03346d310VgnVCM100000c2b1d38d____Asymptotic expansions in boundary crossing problemsWoodroofe, M.R. Keenermichaelw;keenerAnnals of Probability151987102-114jjsantosjjsantos1363185722760