@article{10_4064_aa_15_2_181_187,
     author = {M. Newman and J. Lehner},
     title = {Sums involving {Farey} fractions},
     journal = {Acta Arithmetica},
     pages = {181--187},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {1968},
     doi = {10.4064/aa-15-2-181-187},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-15-2-181-187/}
}