@book{apostol1976analytic,
series = "Undergraduate {T}exts in {M}athematics",
title = "Introduction to {A}nalytic {N}umber {T}heory",
year = 1976,
author = "Tom M. Apostol",
publisher = "Springer-Verlag",
doi = "10.1007/978-1-4757-5579-4",
isbn = "978-0-387-90163-3"
}