^Engelhardt, L. M.; Papasergio, R. I.; Raston, C. L.; White, A. H. Crystal Structures of Trichloro(η5-cyclopentadienyl)titanium(IV) and -zirconium(IV). Organometallics. 1984, 3: 18–20. doi:10.1021/om00079a005.
^Gerhard Erker. Mono(η-cyclopentadienyl)zirconium Complexes: from Coordination Chemistry to Enantioselective Catalysis. Journal of Organometallic Chemistry. 1990, 400 (1–2): 185–203. doi:10.1016/0022-328X(90)83012-9.