PIERS 2007 Beijing: Progress In Electromagnetics Research Symposium, Beijing, China. The Electromagnetics Academy, Cambridge, MA: pp. 702-705; ISBN 978-1-934142-00-4
2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Lyon, France. IEEE: pp. 2331-2335; ISBN 978-1-4244-0787-3