Reference Label	Details
Henderson 1972	W. G. Henderson, M. Taagepera, D. Holtz, R. T. McIver Jr, J. L. Beauchamp, and R. W. Taft, J. Am. Chem. Soc. 94, 4728–4729 (1972) Methyl Substituent Effects in Protonated Aliphatic Amines and Their Radical Cations