@article{10_4064_aa_29_4_315_341, author = {H. Williams}, title = {A generalization of {Lehmer's} functions}, journal = {Acta Arithmetica}, pages = {315--341}, publisher = {mathdoc}, volume = {29}, number = {4}, year = {1976}, doi = {10.4064/aa-29-4-315-341}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-29-4-315-341/} }