@article{10_4064_aa168_4_3,
     author = {Prapanpong Pongsriiam and Robert C. Vaughan},
     title = {The divisor function on residue classes {I}},
     journal = {Acta Arithmetica},
     pages = {369--381},
     publisher = {mathdoc},
     volume = {168},
     number = {4},
     year = {2015},
     doi = {10.4064/aa168-4-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa168-4-3/}
}