@Inbook{stillwell,
author="Stillwell, John",
title="The Gaussian integers",
bookTitle="Elements of Number Theory",
year="2003",
publisher="Springer New York",
address="New York, NY",
pages="101--116",
isbn="978-0-387-21735-2",
doi="10.1007/978-0-387-21735-2_6",
url="https://doi.org/10.1007/978-0-387-21735-2_6"
}

