@inproceedings { wellens08uncertainty,
  author = { Wellens, Pieter },
  title = {  Coping With Combinatorial Uncertainty In Word Learning: A Flexible Usage-Based Model }, 
  booktitle = { Proceedings of the 7th International Conference on The Evolution of Language },
  year = { 2008 }, 
  pages = {370--377},
  editors = {Andrew D.M. Smith and Kenny Smith and Ramon Ferrer i Cancho},
  address = {Signapore}
  publisher = {World Scientific},
  }