Tjeng, L. H., Eskes, H., & Sawatzky, G. (1989). Spectroscopic and Theoretical Estimates of Parameters in Model Hamiltonians Describing the High and Low Energy Scale Physics of Doped CU02 Planes. In Strong Correlation and Superconductivity Proceedings of the IBM Japan International Symposium, Mt. Fuji, Japan, 21–25 May, 1989 (pp. 33-44). doi:10.1007/978-3-642-83836-1_4.