@inproceedings{alife_07,
	Author = {Luc Steels and Pieter Wellens},
	Booktitle = {IEEE Symposium on Artificial Life},
	Pages = {325-332},
	url = {http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=4218858&arnumber=4218903&count=64&index=44}, 
	Title = {Scaffolding Language Emergence Using the Autotelic Principle},
	Year = {2007}}