@article{10_4064_aa_90_3_245_250,
     author = {Manuel Garcia and Fabio Tal},
     title = {A note on the generalized 3n+1 problem},
     journal = {Acta Arithmetica},
     pages = {245--250},
     publisher = {mathdoc},
     volume = {90},
     number = {3},
     year = {1999},
     doi = {10.4064/aa-90-3-245-250},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-90-3-245-250/}
}