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3. Potentiometric titration, association phenomena, and interaction of neighboring groups in polyelectrolytes;Lifson;J Chem Phys,1957
4. Forces between protein molecules in solution arising from fluctuations in proton charge and configuration;Kirkwood;Proc Natl Acad Sci USA,1952
5. Theory of protein titration curves. I. General equations for impenetrable spheres;Tanford;J Am Chem Soc,1957