The principle investigators on this project are Barbara Geddes (UCLA) and Joseph Wright (Pennsylvania State University) in collaboration with Erica Frantz (Michigan State). Initial funding for this research was provided by the National Science Foundation (BCS-0904478 and BCS-090463).

Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Inquiries should be sent to josephGwright (at) gmail (dot) com .

This project is supported by the National Science Foundation BCS-0904478 and BCS-0904463