↑ Olah, G. A.; Nojima, M.; Kerekes, I.(1973).“Synthetic Methods and Reactions II. Hydrofluorination of Alkenes, Cyclopropane and Alkynes with Poly-Hydrogen Fluoride/Pyridine (Trialkylamine)Reagents”.Synthesis1973(12): 779-780.doi:10.1055/s-1973-22297.
↑ Olah, G. A.; Welch, J. T.; Vankar, Y. D.; Nojima, M.; Kerekes, I.; Olah, J. A.(1979).“Synthetic methods and reactions. 63. Pyridinium poly(hydrogen fluoride) (30% pyridine-70% hydrogen fluoride): a convenient reagent for organic fluorination reactions”.J. Org. Chem.44(22): 3872–3881.doi:10.1021/jo01336a027.