K. D. Collins and M. W. Washabaugh, The Hofmeister effect and the behaviour of water at interfaces, Quart. Rev. Biophys., 18 (1985) 323-422.
W. Kunz, P. Lo Nostro and B. W. Ninham, The present state of affairs with Hofmeister effects, Curr. Opin. Coll. Interface Sci. 9 (2004) 1-18.
They're a little obscure, but I'd be in your debt if you can find them.