Dziuba D, Postupalenko VY, Spadafora M, Klymchenko AS, Guérineau V, Mély Y, Benhida R, Burger A. A universal nucleoside with strong two-band switchable fluorescence and sensitivity to the environment for investigating DNA interactions. J Am Chem Soc. 2012 Jun 20;134(24):10209–13. doi: 10.1021/ja3030388. PMID: 22591455.