1. Lohse DJ (2000) Polyolefins. In: Craver CD, Carraher CE (eds) Applied polymer science – 21st century. Elsevier, New York
2. Fawcett EW, Gibson RO, Perrin MW, Paton JG, Williams EG (1937) Improvements in or relating to the polymerisation of ethylene. Great Britain Patent 471,590
3. Ziegler K, Gellert HG (1953) Verfahren zur polymerisation und mischpolymerisation von olefinen. German Patent 878,560
4. McMillan FM (1979) The chain straighteners. Macmillan, London
5. Sinn H, Kaminsky W (1980) Ziegler-Natta catalysis. Adv Organomet Chem 18:99–149.
http://dx.doi.org/10.1016/S0065-3055(08)60307-X