BibTex format
@inproceedings{Luong:2011:10.1117/12.877771,
author = {Luong, DVN and Rueckert, D and Rustem, B},
doi = {10.1117/12.877771},
publisher = {SPIE-INT SOC OPTICAL ENGINEERING},
title = {Incorporating hard constraints into non-rigid registration via nonlinear programming},
url = {http://dx.doi.org/10.1117/12.877771},
year = {2011}
}