BibTex format
@article{Marsh:2008:10.1016/j.cogsys.2007.06.009,
author = {Marsh, L and Onof, C},
doi = {10.1016/j.cogsys.2007.06.009},
journal = {COGNITIVE SYSTEMS RESEARCH},
pages = {136--149},
title = {Stigmergic epistemology, stigmergic cognition},
url = {http://dx.doi.org/10.1016/j.cogsys.2007.06.009},
volume = {9},
year = {2008}
}