Kopczynski, M., Lenzer, T., Oum, K., Seehusen, J., Seidel, M., & Ushakov, V. G. (2005). Ultrafast transient lens spectroscopy of various C-40 carotenoids: lycopene, beta-carotene, (3R,3'R)- zeaxanthin, (3R,3'R,6'R)-lutein, echinenone, canthaxanthin, and astaxanthin. Physical Chemistry Chemical Physics, 7(14), 2793-2803. Retrieved from http://www.rsc.org/delivery/_ArticleLinking/ArticleLinking.cfm?JournalCode=CP&Year=2005&ManuscriptID=b506574g&Iss=14.