BibTex format
@article{Coustham:2012:10.1126/science.1221881,
author = {Coustham, V and Li, P and Strange, A and Lister, C and Song, J and Dean, C},
doi = {10.1126/science.1221881},
journal = {SCIENCE},
pages = {584--587},
title = {Quantitative Modulation of Polycomb Silencing Underlies Natural Variation in Vernalization},
url = {http://dx.doi.org/10.1126/science.1221881},
volume = {337},
year = {2012}
}