Bossi, M., Belov, V., Polyakova, S., & Hell, S. W. (2006). Reversible rot fluoreszierende molekulare Schalter. Angewandte Chemie, 118(44), 7623-7627. Retrieved from http://www3.interscience.wiley.com/cgi-bin/fulltext/113399219/HTMLSTART.