@article{PIM_1971_N_S_12_26_a1,
     author = {L. Carlitz},
     title = {Some {Inequalities} {Related} {To} {Euler's} {Theorem} $R \ge 2r$},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {11 },
     publisher = {mathdoc},
     volume = {_N_S_12},
     number = {26},
     year = {1971},
     url = {http://geodesic.mathdoc.fr/item/PIM_1971_N_S_12_26_a1/}
}