O. Kemal, T. Brown, S. Burgess, J. D. Bishop and A. J. Leighbrown. Nucleosides Nucleotides 10 (1-3), 555-561, 1991.
Ayan Dasgupta, Sebastian Golojuch, Li Xiao, Nour Eddine Fahmi, Edward A. Anderson & Tom Brown. Nature Chemistry 2026.