References
- Clemens H., Hurtle R. L. Automatic system for urine analysis. Clin. Chem. 1972; 18: 789
- The Digital Densimeter DMA 10 Instruction Munual, K. G. AntonPaar. Graz, Austria
- Henry R. J. Clinical Chemistry. Harper & Row, New York 1964; 884–887
- Holvey D. N., Talbott J. H. The Merck Manual. Merck & Co., Inc., Rahway, NJ 1972; 607–608
- Samson Wright's Applied Physiology, 12th ed, C. A. Keele, E. Neil. Oxford University Press, London 1971; 227