1. Albizzati E, Cecchin G, Chadwick JC, Collina G, Giannini U, Morini G, Noristi L, Resconi L (2005) In: Pasquini N (ed) Polypropylene handbook, 2nd edn. Carl Hanser Verlag, Munich (Ch. 2)
2. Chadwick JC (2001) Macromol Symp 173:21
3. Cecchin G, Morini G, Pelliconi A (2001) Macromol Symp 173:195
4. Sergeev SA, Bukatov GD, Zakharov VA, Moroz EM (1983) Makromol Chem 184:2421
5. Terano M, Kataoka T, Keii T (1986) In: Keii T, Soga K (eds) Catalytic polymerization of olefins. Kodansha-Elsevier, Amsterdam, p 407