@article{MAN_1982__260_163669,
     author = {Robert A. Smith},
     title = {The {Generalized} {Divisor} {Problem} {Over} {Arithmetic} {Progressions.}},
     journal = {Mathematische Annalen},
     pages = {255--268},
     year = {1982},
     volume = {260},
     zbl = {0467.10034},
     url = {http://geodesic.mathdoc.fr/item/MAN_1982__260_163669/}
}