%0 Journal Article %A Riho Terras %T A stopping time problem on the positive integers %J Acta Arithmetica %D 1976 %P 241-252 %V 30 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-30-3-241-252/ %R 10.4064/aa-30-3-241-252 %G en %F 10_4064_aa_30_3_241_252