PLoS One, vol. 8, no. 3, page. E59187 - E59187, 2013-03-12
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 134, no. 42, page. 17456 - 17458, 2012-10-24
SCIENCE, vol. 334, no. 6056, page. 639 - 642, 2011-11-04