BibTex format
@inbook{Keller:2015,
author = {Keller, R and Amis, AA},
booktitle = {The Unhappy Total Knee Replacement},
editor = {Hirschmann and Becker},
pages = {3--15},
publisher = {Springer},
title = {Anatomy and Biomechanics of the Natural Knee and After TKR},
url = {http://www.imperial.ac.uk/people/richard.keller09},
year = {2015}
}