@article{10_4064_ap_1_2_360_366,
     author = {R. Hampel},
     title = {The length of the shortest period of rests of numbers $n^n$},
     journal = {Annales Polonici Mathematici},
     pages = {360--366},
     publisher = {mathdoc},
     volume = {1},
     number = {2},
     year = {1955},
     doi = {10.4064/ap-1-2-360-366},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-1-2-360-366/}
}