More information in <a href="http://citi.di.fct.unl.pt/publication/inproceeding.php?id=256">http://citi.di.fct.unl.pt/publication/inproceeding.php?id=256</a>.
Prototype developed by Daniel Machado, Carlos Baquero, Nuno Preguiça and J. Legatheaux Martins.
