1. Lieberman, R.B. and Le Noir, R.T., Polypropylen Handbook, Manufacturing, Moore, E.P., Ed., New York: Hauser Publishers, 1966, pp. 287–301.
2. Poliolefins Plauning Service, Technology Review, Nexant, Chem. Systems, June 2005, pp. 159–226.
3. Chemical Week, 1986, December, no. 3, p. 33.
4. Maier, E.A. et al., Plast. Massy, 1988, no. 11, pp. 4–6.
5. Maier, E.A. et al., Plast. Massy, 1992, no. 6, pp. 12–17.