BibTex format
@article{Barraclough:2003:10.1078/0944-2006-00130,
author = {Barraclough, TG and Herniou, E},
doi = {10.1078/0944-2006-00130},
journal = {ZOOLOGY},
pages = {275--282},
title = {Why do species exist? Insights from sexuals and asexuals},
url = {http://dx.doi.org/10.1078/0944-2006-00130},
volume = {106},
year = {2003}
}