1. Gmelin Handbook of Inorganic Chemistry, Supplementary Work, Vol. 41: Organoiron Compounds, Pt. A: Ferrocene, Sect. 6: Binuclear and Multinuclear Ferrocenes, 8th Ed., Springer-Verlag, Berlin, 1977.
2. π-Cyclopentadienyl, π-Arene, and Related Complexes