@article {4697,
	title = {Surface photochemistry probed by two-photon photoemission spectroscopy},
	journal = {Energy and Environmental Science},
	year = {2012},
	pages = {6833-6844},
	doi = {10.1039/c2ee21493h},
	author = {Chuanyao Zhou and Zhibo Ma and Zefeng Ren and Alec M. Wodtke and Xueming Yang}
}
