@article{10_4064_cm_56_2_221_229,
     author = {Greg G. Gibbon},
     title = {Functions having stationary constant sets},
     journal = {Colloquium Mathematicum},
     pages = {221--229},
     publisher = {mathdoc},
     volume = {56},
     number = {2},
     year = {1988},
     doi = {10.4064/cm-56-2-221-229},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-56-2-221-229/}
}