1. Ziegler-Natta Catalysts and Polymerization;Boor,1979
2. Isospecific Polymerization of Olefins;Kissin,1985
3. Polypropylene Handbook,2005
4. The catalytic system Ti-complex/MgCl2;Barbè;Adv. Polym. Sci.,1987
5. Recent advances in propylene polymerization with MgCl2 supported catalysts;Albizzati;Macromol. Symp.,1995