@inbook{Levine1991,
author = {Levine, R.J.},
title= {Seasonal variation in human semen quality},
year = {1991},
doi = {10.1007/978-1-4684-5913-5_8},
editor = {Zorgniotti, A.W.},
booktitle = {Temperature and environmental effects on the testis},
address = {Boston},
publisher = {Springer},
pages = {89--96},
}