1. V. P. Litvinov, S. G. Krivokolysko, V. D. Dyachenko, Khim. Geterotsikl. Soedin., 1999, 579 [Chem. Heterocycl. Compd. (Engl. Transl.), 1999, 35, 509].
2. V. P. Litvinov, Russ. Chem. Bull. (Int. Ed.), 1998, 47, 2053 [Izv. Akad. Nauk, Ser. Khim., 1998, 2123].
3. V. V. Dotsenko, S. G. Krivokolysko, V. P. Litvinov, Khim. Geterotsikl. Soedin., 2007, 1709 [Chem. Heterocycl. Compd. (Engl. Transl.), 2007, 43, 1455].
4. V. V. Dotsenko, S. G. Krivokolysko, V. P. Litvinov, Russ. Chem. Bull. (Int. Ed.), 2005, 54, 2692 [Izv. Akad. Nauk, Ser. Khim., 2005, 2605].
5. V. V. Dotsenko, S. G. Krivokolysko, A. N. Chernega, V. P. Litvinov, Russ. Chem. Bull. (Int. Ed.), 2007, 56, 1053 [Izv. Akad. Nauk, Ser. Khim., 2007, 1014].