1. Whitley GS, Davis CC, Dunbrook RF (eds) (1954) Synthetic rubber. Wiley, New York
2. Blackely DC (1983) Synthetic rubber: their chemistry and technology, Chapter 2. Applied Science, London
3. Source: International Rubber Study Group, 2015
4. Bloomberg (2015) World rubber demand slowdown to weigh on prices through 2020. Bloomberg, New York
5. WCED (1987) World Commission on Environment and Development “Our common future”. Oxford University Press, Oxford, NY