Reference Label	Details
Vanderzee 1972a	C. E. Vanderzee, D. L. King, and I. Wadsö, J. Chem. Thermodyn. 4, 685-689 (1972) The Enthalpy of Ionization of Aqueous Ammonia
Pitzer 1937	K. S. Pitzer, J. Am. Chem. Soc. 59, 2365-2371 (1937) The Heats of Ionization of Water, Ammonium Hydroxide, Carbonic, Phosphoric, and Sulfuric Acids. The Variation of Ionization Constants with Temperature and the Entropy Change with Ionization