1. Braginskii, O.B., Mirovoi neftegazovyi kompleks (World Oil and Gas Complex), Moscow: Nauka, 2004.
2. Ethylene. https://en.wikipedia.org/wiki/Ethylene
3. Braginskii, O.B., Nefte Gazo Khimiya, 2015, no. 2, p. 11.
4. Rynok etilena v Rossii (Market of Ethylene in Russia), market research report of the Academy of Conjuncture of Industrial Markets, Moscow: Nauka, 2006.
5. Propylene. https://en.wikipedia.org/wiki/Propene