5 ms·

http://www.pnas.org/content/early/2010/10/08/1006993107.abstract http://www.pnas.org/content/early/2010/10/08/1006993107.abst... But in widespread use probably

by nrlucas 14y ago

http://www.pnas.org/content/early/2010/10/08/1006993107.abstract http://www.pnas.org/content/early/2010/10/08/1006993107.abst... But in widespread use probably quite a bit less.