M.  Coreno, de Simone, M., Green, J. C., Kaltsoyannis, N., Coates, R., Hunston, C., Narband, N., and Sella, A., ?Variable photon energy photoelectron spectroscopy of tris-cyclopentadienyl lanthanides?, Dalton Transactions, vol. 43, pp. 5134?5141, 2014.