Bott, S., Bott, S., Yang, K., & Richmond, M. (2006). Synthesis of the chiral tetrahedral clusters RCCo2NiCp(CO)4(bmf) (R=H, Ph) and thermally promoted diphosphine ligand activation: Regiospecific P–C bond scission and X-ray diffraction structure of Co2NiCp(CO)4[μ2,η2,η1-C(H)CC(PPh2)C(O)OCH(OMe)](μ-PPh2). Journal of Organometallic Chemistry, 691(1-2), pp. 20-26. doi:10.1016/j.jorganchem.2005.08.040

Bott, Simon, SG Bott, KY Yang, and MG Richmond. "Synthesis of the Chiral Tetrahedral Clusters RCCo2NiCp(CO)4(bmf) (R=H, Ph) and Thermally Promoted Diphosphine Ligand Activation: Regiospecific P–C Bond Scission and X-ray Diffraction Structure of Co2NiCp(CO)4[μ2,η2,η1-C(H)CC(PPh2)C(O)OCH(OMe)](μ-PPh2)." Journal of Organometallic Chemistry 691, no. 1-2 (2006): 20-26.

Bott, Simon, SG Bott, KY Yang, and MG Richmond. "Synthesis of the Chiral Tetrahedral Clusters RCCo2NiCp(CO)4(bmf) (R=H, Ph) and Thermally Promoted Diphosphine Ligand Activation: Regiospecific P–C Bond Scission and X-ray Diffraction Structure of Co2NiCp(CO)4[μ2,η2,η1-C(H)CC(PPh2)C(O)OCH(OMe)](μ-PPh2)." Journal of Organometallic Chemistry 691.1-2 (2006): 20-26.