1. Presentation of the Italian Company G.S.I., Global Service International S.R.I., 1012.
2. Chemical Fibers International, No. 3, 100 (2016).
3. Fiber Organon, June, 2015.
4. E. M. Aizenshtein, Neftegaz. RU, No. 7-8, 102 (2016).
5. E. M. Aizenshtein, Third Int. Conf. Polyethylene Terephthalate − 2016 [in Russian], 24 October 2016, OOO Alyans-Analitika, Moscow.