@article{10_4064_ba62_1_4,
     author = {Maciej Maciejewski and Andrzej Pr\'oszy\'nski},
     title = {On $n$-derivations and {Relations} between
 {Elements} $r^{n}-r$ for {Some} $n$},
     journal = {Bulletin of the Polish Academy of Sciences. Mathematics},
     pages = {29--42},
     publisher = {mathdoc},
     volume = {62},
     number = {1},
     year = {2014},
     doi = {10.4064/ba62-1-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ba62-1-4/}
}