1. and Biochemistry for the Medical Sciences, John Wiley and Sons Ltd, New York (1983). Glutamine
2. ed. Geigy Scientific Tables: Biochemistry, Metabolism of Xenobiotics, Inborn Errors of Metabolism, Pharmacogenetics and Ecogenetics, 4, Ciba-Geigy Ltd, Basle (1986).
3. and , Textbook of Biochemistry, 6th edn, McGraw Hill, (1978).
4. Hepatic encephalopathy. Diseases of the Liver. ed. by and , pp. 925–948, J. P. Lippincott, Philadelphia (1987).
5. Biochemistry and physiology of brain ammonia.