1. G. V. Malinovskaya, A. Ya. Chizhova, and V. Ph. Anufriev,Izv. Akad. Nauk, Ser. Khim., 1999, 1019 [Russ. Chem. Bull., 1999,48, 1010 (Engl. Transl.)].
2. V. D. Filimonov, M. S. Yusubov, and Ki-Van Chi,Usp. Khim., 1998,67, 803 [Russ. Chem. Rev., 1998.,67 (Engl. Transl.)].
3. K. Wallenfels and A. Gauhe,Ber., 1942,75B, 413.
4. R. Kuhn and K. Wallenfels,Ber., 1942,75B, 407.
5. N. P. Mishchenko, inVsesoyuznaya konferentsiya po khimii khinonov i khinoidnykh soedinenii [All-Union Conf. on the Chemistry of Quinones and Quinoid Compounds], Novosibirsk, 1991, 164 (in Russian).