%0 Journal Article %A Basu, A. K. %T Invariance Theorems for First Passage Time Random Variables %J Canadian mathematical bulletin %D 1972 %P 171-176 %V 15 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-031-9/ %R 10.4153/CMB-1972-031-9 %F 10_4153_CMB_1972_031_9