1. 1. Nikolaev, G.A. (1978) Welding in machine-building: Handbook in 4 Vol. Moscow, Mashinostroenie [in Russian].
2. 2. Paton, B.E. (2018) Dictionary and reference book on welding and gluing of plastics. Kyiv, Naukova Dumka [in Ukrainian].
3. 3. Komarov, G.V. (2006) Connections of parts from polymer materials. Moscow, Professiya [in Russian].
4. 4. ISO 472:2013 Plastics - Vocabulary. Geneva.
5. 5. Grishin, N.A., Voyutskii, S.S., Gudimov, M.M. (1957) On mechanism of welding of organic glasses. Doklady AN SSSR, 116(4), 629-632 [in Russian].