BibTex format
@article{Barber:2008:10.1098/rstb.2007.2208,
author = {Barber, J and Murray, JW},
doi = {10.1098/rstb.2007.2208},
journal = {PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES},
pages = {1129--1137},
title = {The structure of the Mn<sub>4</sub>Ca<SUP>2+</SUP> cluster of photosystem II and its protein environment as revealed by X-ray crystallography},
url = {http://dx.doi.org/10.1098/rstb.2007.2208},
volume = {363},
year = {2008}
}