@inproceedings{cogstig-e4mas06,
	Address = {AAMAS 2006, Hakodate, Japan},
	Author = {Ricci, Alessandro and Omicini, Andrea and Viroli, Mirko and Gardelli, Luca and Oliva, Enrico},
	Booktitle = {3rd International Workshop ``Environments for Multi-Agent Systems'' (E4MAS 2006)},
	Editor = {Weyns, Danny and Parunak, H. Van Dyke and Michel, Fabien},
	Month = {8~} # may,
	Pages = {44--60},
	Title = {Cognitive Stigmergy: A Framework Based on Agents and Artifacts},
	Url = {http://www.cs.kuleuven.ac.be/~distrinet/events/e4mas/2006/contents/papers/ricci.pdf},
	Year = 2006}