%0 Journal Article %A Korec, Ivan %T The $3x+1$ problem, generalized Pascal triangles and cellular automata %J Mathematica slovaca %D 1992 %P 547-563 %V 42 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1992__42_5_a2/ %G en %F MASLO_1992__42_5_a2