@article{MOMA_1980__90_177986,
     author = {Franz Hofbauer},
     title = {The {Topological} {Entropy} of the {Transformation} x ... ax (1-x).},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {117--142},
     publisher = {mathdoc},
     volume = {90},
     year = {1980},
     zbl = {0433.54009},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1980__90_177986/}
}