1. US Patent 4309259 A, 1982.
2. RF Patent 350558, 2009.
3. US Patent US 4542004 A, 1985.
4. Lu, Z., and Zhang, W., Chinese J. Chem. Eng., 2014, vol. 22, no. 2, pp. 227–233.
5. Rusanov, V.D. and Fridman, A.A., Fizika khimicheski ak tivnoi plazmy (Physics of Chemically Active Plasma), Moscow.: Nauka, 1984.