%0 Journal Article %A K. A. Borovkov %A D. Pfeifer %T Estimates for the Syracuse problem via a~probabilistic model %J Teoriâ veroâtnostej i ee primeneniâ %D 2000 %P 386-395 %V 45 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_2000_45_2_a12/ %G en %F TVP_2000_45_2_a12