BibTex format
@article{Amato:2015:10.1016/j.jctb.2015.03.003,
author = {Amato, D and Evans, DM},
doi = {10.1016/j.jctb.2015.03.003},
journal = {Journal of Combinatorial Theory Series B},
pages = {33--50},
title = {Infinite primitive and distance transitive directed graphs of finite out-valency},
url = {http://dx.doi.org/10.1016/j.jctb.2015.03.003},
volume = {114},
year = {2015}
}