some useful paper:

http://pubs.acs.org/doi/abs/10.1021/ct1007394

http://scitation.aip.org/content/aip/journal/jcp/137/22/10.1063/1.4757762

Look at :

1. Meyer, Miller, J. Chem. Phys. 70, 3214 (1979)

2. Thoss, Miller, Stock, J. Chem. Phys. 112, 10282 (2000)

3. Stock, Thoss, Phys. Rev. Lett. 78, 578 (1997)

and articles that reference the above.

Here is an overview you might find useful: http://homepage.univie.ac.at/mario.barbatti/papers/review/worth_ann_rev_phs_chem_55_127_2004.pdf

And in this paper you can find an example on the quality of the surface hopping in comparison to more precise methods: http://scitation.aip.org/content/aip/journal/jcp/138/9/10.1063/1.4793274