@article{10_4064_cm108_2_1,
     author = {Y.-F. S. P\'etermann},
     title = {On fluctuations in the mean of
  a sum-of-divisors function, {II}},
     journal = {Colloquium Mathematicum},
     pages = {171--177},
     publisher = {mathdoc},
     volume = {108},
     number = {2},
     year = {2007},
     doi = {10.4064/cm108-2-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm108-2-1/}
}