Muller, P (1994). «Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)». Pure and Applied Chemistry66 (5): 1077-1184. doi:10.1351/pac199466051077.
Tolman, Chadwick A. (1 de mayo de 1970). «Phosphorus ligand exchange equilibriums on zerovalent nickel. Dominant role for steric effects». J. Am. Chem. Soc.92 (10): 2956-2965. doi:10.1021/ja00713a007.