Reference Label	Details
Suits 2006	A. G. Suits and J. W. Hepburn, Annu. Rev. Phys. Chem. 57, 431 (2006)
Hu 2005	Q. C. Hu, "Spectroscopy and Dynamics of Threshold Ion-Pair Formation", Univ. Br. Columbia, Vancouver (2005) 134 pp.