1. I. I. Strizhevskii and A. I. El’tanov, Torches [in Russian], Khimiya, Moscow (1979).
2. Ya. F. Magaril, A. A. Nazarov, V. I. Panchenko, et al., Russian Patent No. 59212 U1 MPK F23L 17/02 for a useful model, “Torch head,” issued on December 10, 2006, Byull., No. 34.
3. Ya. F. Magaril, A. A. Nazarov,V. I. Panchenko, et al., Russian Patent No. 63496 U1 MPK F23D 14/60, “Torch head,” issued on May 27, 2007, Byull., No. 15.