BibTex format
@article{Graham:2014:10.1371/journal.pone.0091204,
author = {Graham, SL and Hunt, JE and Millard, P and McSeveny, T and Tylianakis, JM and Whitehead, D},
doi = {10.1371/journal.pone.0091204},
journal = {PLOS ONE},
title = {Effects of Soil Warming and Nitrogen Addition on Soil Respiration in a New Zealand Tussock Grassland},
url = {http://dx.doi.org/10.1371/journal.pone.0091204},
volume = {9},
year = {2014}
}