1. A generalization of Everett's result on the Collatz 3x;Dolan;Adv. Appl. Math.,1987
2. Iteration of the number theoretic functionfnnfnn;Everett;Adv. in Math.,1977
3. Unsolved Problems in Number Theory;Guy,1981
4. The 3x;Lagarias;Amer. Math. Monthly,1985
5. A Markov process underlying the generalized Syracuse algorithm;Leigh;Acta Arith.,1986