@article{MASLO_1994_44_1_a7,
author = {Korec, Ivan},
title = {A density estimate for the $3x+1$ problem},
journal = {Mathematica slovaca},
pages = {85--89},
year = {1994},
volume = {44},
number = {1},
mrnumber = {1290275},
zbl = {0797.11027},
language = {en},
url = {http://geodesic.mathdoc.fr/item/MASLO_1994_44_1_a7/}
}
Korec, Ivan. A density estimate for the $3x+1$ problem. Mathematica slovaca, Tome 44 (1994) no. 1, pp. 85-89. http://geodesic.mathdoc.fr/item/MASLO_1994_44_1_a7/
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