@article{JIS_2015__18_3_a5,
     author = {Bayarmagnai, Gombodorj},
     title = {A note on a theorem of {Rotkiewicz}},
     journal = {Journal of integer sequences},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2015__18_3_a5/}
}