JOURNAL OF CHEMICAL PHYSICS, vol. 94, no. 3, page. 2057 - 2062, 1991-02-01
MOLECULAR PHYSICS, vol. 76, no. 3, page. 537 - 546, 1992-06-20
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 113, no. 7, page. 2452 - 2459, 1991-03-27