@article{10_4064_cm_37_2_313_315,
     author = {W. Narkiewicz},
     title = {On a conjecture of {Erd\"os}},
     journal = {Colloquium Mathematicum},
     pages = {313--315},
     publisher = {mathdoc},
     volume = {37},
     number = {2},
     year = {1971},
     doi = {10.4064/cm-37-2-313-315},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-37-2-313-315/}
}