@article{10_4064_aa_26_3_303_305,
     author = {H. Siebert},
     title = {On a question of {P.} {Tur\'an}},
     journal = {Acta Arithmetica},
     pages = {303--305},
     publisher = {mathdoc},
     volume = {26},
     number = {3},
     year = {1974},
     doi = {10.4064/aa-26-3-303-305},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-26-3-303-305/}
}