Linnell, Robert. Notes – Dissociation Constants of 2-Substituted Pyridines. Journal of Organic Chemistry. 1960, 25 (2): 290. doi:10.1021/jo01072a623.
Pearson, Ralph G.; Williams, Forrest V. Rates of Ionization of Pseudo Acids.1V. Steric Effects in the Base-catalyzed Ionization of Nitroethane. Journal of the American Chemical Society. 1953, 75 (13): 3073. doi:10.1021/ja01109a008.
George A. Olah, Michael Watkins. Fluorinations With Pyridinium Polyhydrogen Fluoride Reagent: 1-Fluoroadamantane. Org. Synth. 1978, 58: 75. doi:10.15227/orgsyn.058.0075.