BibTex format
@article{Kittl:2015:10.1007/s00142-015-0025-2,
author = {Kittl, C and Schmeling, A and Amis, AA},
doi = {10.1007/s00142-015-0025-2},
journal = {ARTHROSKOPIE},
pages = {172--180},
title = {The patellofemoral joint. Anatomy, biomechanics, and surgical interventions},
url = {http://dx.doi.org/10.1007/s00142-015-0025-2},
volume = {28},
year = {2015}
}