@inbook{Nistic__2019,
title={The Little Mathematics You Need},
ISBN={9783030264963},
url={http://dx.doi.org/10.1007/978-3-030-26496-3_3},
DOI={10.1007/978-3-030-26496-3_3},
booktitle={Essentials of Pension Economics},
publisher={Springer International Publishing},
author={Nisticò,
Sergio},
year={2019},
pages={27–44} }