JOURNAL OF PHYSICAL CHEMISTRY A, vol. 108, no. 27, page. 5785 - 5792, 2004-07-08
JOURNAL OF PHYSICAL CHEMISTRY A, vol. 109, no. 35, page. 7888 - 7895, 2005-09-08
ANALYTICAL CHEMISTRY, vol. 80, no. 6, page. 1928 - 1936, 2008-03-15
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, vol. 262, no. 1-2, page. 1 - 15, 2007-04-15