1. Smith, H. W., “Principles of Renal Physiology” (New York, 1956).
2. Robinson, I. R., “Reflections on Renal Function” (Oxford, 1954).
3. Sawyer, W. H., Amer. J. Physiol., 189, 564 (1957).
4. Ussing, H. H., Proc. 7th Colston Research Soc. Symp., 33 (1954).
5. Ginetzinsky, A. G., Broitman, A. I., and Ivanova, L. N., Bull. Exper. Biol. Med., 38, 37 (1954) (in Russian).