1. Silaichev, P.S., Chudinova, M.A., Slepukhin, P.A., and Maslivets, A.N., Russ. J. Org. Chem., 2012, vol. 48, p. 1435.
2. Maslivets, A.N. and Mashevskaya, I.V., 2,3-Digidro-2,3-pirroldiony (2,3-Dihydropyrrole-2,3-diones), Perm: Perm. Gos. Univ., 2005, p. 63.
3. Andreichikov, Yu.S., Gein, V.L., Zalesov, V.V., Kozlov, A.P., Kollents, G., Maslivets, A.N., Pimenova, E.V., and Shurov, S.N., Khimiya pyatichlennykh 2,3-dioksogeterotsiklov (Chemistry of Five-Membered 2,3-Dioxo Heterocycles), Perm: Perm. Gos. Univ., 1994, p. 91.
4. Maslivets, A.N., Mashevskaya, I.V., and Andreichikov, Yu.S., Russ. J. Org. Chem., 1995, vol. 31, p. 569.
5. Tolmacheva, I.A., Mashevskaya, I.V., and Maslivets, A.N., Russ. J. Org. Chem., 2001, vol. 37, p. 596.