1. Hofmann, W., Vulkanisation und Vulkanisationshilfsmittel unter besonderer Ber�cksichtigung der Bayer-Produkte, Stuttgart: Berliner Union, 1965.
2. Tikhonova, N.P., Ginzburg, L.V., and Dontsov, A.A., Kauchuk Rezina, 1987, no. 3, pp. 13?15.
3. Klyuchnikov, O.R., Energeticheskie kondensirovannye sistemy: Materialy Vserossiiskoi konferentsii 28?31 oktyabrya 2002 g. (Chernogolovka, IPKhF RAN) (High-Energy-Capacity Condensed Systems: Proc. Russian Conf., October 28?31, 2002 (Chernogolovka, Inst. of Problems of Chemical Physics, Russian Acad. Sci.)), Moscow: Yanus-K, 2002, pp. 94?95.
4. Baeyer, E., Ber. Deutsch. Chem. Ges., 1886, vol. 19, p. 159.
5. Comprehensive Organic Chemistry. The Synthesis and Reactions of Organic Compounds, Barton, D. and Ollis, W.D., Eds., vol. 2: Nitrogen Compounds, Oxford: Pergamon, 1979.