Streuli, C. A. (1960). «Determination of Basicity of Substituted Phosphines by Nonaqueous Titrimetry». Anal. Chem.32: 985-987. doi:10.1021/ac60164a027.
Bush, R. C.; Angelici, R. J. (1988). «Phosphine basicities as determined by enthalpies of protonation». Inorg. Chem.27 (4): 681-686. doi:10.1021/ic00277a022.
Immirzi, A.; Musco, A. (1977). «A Method to Measure the Size of Phosphorus Ligands in Coordination Complexes». Inorg. Chim. Acta25: L41-42. doi:10.1016/S0020-1693(00)95635-4.