@article{10_4064_aa_36_3_203_217,
     author = {A. Rotkiewicz and R. Was\'en},
     title = {Lehmer's numbers},
     journal = {Acta Arithmetica},
     pages = {203--217},
     publisher = {mathdoc},
     volume = {36},
     number = {3},
     year = {1980},
     doi = {10.4064/aa-36-3-203-217},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-36-3-203-217/}
}