1. A. A. Zidermane, Fluoropyrimidines in the Chemotherapy of Tumors [in Russian], Riga (1982).
2. É. Ya. Lukevits and A. E. Zabolotskaya, The Silyl Methods for the Synthesis of Nucleosides [in Russian], Riga (1985).
3. M. N. Preobrazhenskaya and S. Ya. Mel'nik, Science and Technology Summaries, Bioorganic Chemistry Series [in Russian], Moscow (1984), pp. 36, 55, 77–120.
4. K. Gerson and D. Kau, J. Med. Chem.,10, 189 (1967).
5. R. Glazer, K. Hartman, and O. Cohen, Biochem. Pharmacol.,30, 2697 (1981).