BibTex format
@article{Lever:2013:15/152101,
author = {Lever, G and Cole, DJ and Hine, NDM and Haynes, PD and Payne, MC},
doi = {15/152101},
journal = {JOURNAL OF PHYSICS-CONDENSED MATTER},
title = {Electrostatic considerations affecting the calculated HOMO-LUMO gap in protein molecules},
url = {http://dx.doi.org/10.1088/0953-8984/25/15/152101},
volume = {25},
year = {2013}
}