BibTex format
@article{Emms:2009:10.1016/j.disc.2009.02.008,
author = {Emms, J and Evans, DM},
doi = {10.1016/j.disc.2009.02.008},
journal = {Discrete Mathematics},
pages = {4475--4480},
title = {Constructing continuum many countable, primitive, unbalanced digraphs},
url = {http://dx.doi.org/10.1016/j.disc.2009.02.008},
volume = {309},
year = {2009}
}