1. Journal of Organometallic Chemistry
Volume 656, Issues 1-2, 15 August 2002, Pages 129-138, Carlos Alonso-Moreno, Antonio Antiñolo, Isabel Lуpez-Solera, Antonio Otero, Sanjiv Prashar, Ana M. Rodríguez and Elena Villaseñor, "Niobium, titanium, zirconium and hafnium complexes incorporating germanium bridged ansa ligands. X-Ray crystal structures of [Zr{Me2Ge(η5-C5Me4)2}Cl2] and [M{Me2Ge(η5-C5Me4)(η5-C5H4)}Cl2] (M=Zr, Hf) "
- DOI:
http://dx.doi.org/10.1016/S0022-328X(02)01576-0
Volume 619, Issues 1-2, 30 January 2001, Pages 280-286, Anton Y. Agarkov, Vyacheslav V. Izmer, Alexey N. Riabov, Lyudmila G. Kuz'mina, Judith A. K. Howard, Irina P. Beletskaya and Alexander Z. Voskoboynikov, "Synthesis and X-ray crystal structures of ansa-complexes of titanium, zirconium, and hafnium involving methylene-bis(indenyl) ligand"
- DOI:
http://dx.doi.org/10.1016/S0022-328X(00)00666-5