Lohrenz, J. C. W., Bühl, M., Weber, M., & Thiel, W. (1999). A density functional
study on the formation of stereoerrors in the stereoselective propene polymerization with zirconocene catalysts.
Journal of Organometallic Chemistry, 592(1), 11-21. doi:10.1016/S0022-328X(99)00438-6.