BibTex format
@inbook{Childs:2014:10.1016/B978-0-08-097759-1.00008-3,
author = {Childs, PRN},
booktitle = {MECHANICAL DESIGN ENGINEERING HANDBOOK},
doi = {10.1016/B978-0-08-097759-1.00008-3},
pages = {317--366},
publisher = {ELSEVIER SCIENCE BV},
title = {Gears},
url = {http://dx.doi.org/10.1016/B978-0-08-097759-1.00008-3},
year = {2014}
}