@article {1251,
	title = {Primary step in bacteriorhodopsin photosynthesis: Bond stretch rather than angle twist of its retinal excited-state structure},
	journal = {Journal of the American Chemical Society},
	volume = {120},
	number = {34},
	year = {1998},
	note = {Song, L El-Sayed, MA},
	month = {Sep},
	pages = {8889-8890},
	isbn = {0002-7863},
	doi = {10.1021/ja980390d},
	author = {Song, Li and El-Sayed, Mostafa A}
}
