1. Cox , D.A.
Richardson , K.
Ross , B.C. In Topics in Antibiotics Chemistry , Vol. 1;
P.G. Sammes , Ed. Ellis Horwood : Chichester , 1977 ; 5 – 15 , 32, 41–43, 51 .
2. AMA Drug Evaluations, , 4th Ed. ; American Medical Association/American Society for Clinical Pharmacology and Therapeutics, Publishing Sciences Group : Littleton , MA , 1980 ; 767 – 768 , 803–804, 963–964 .
3. Hollstein , U. In Burger's Medicinal Chemistry, , 4th Ed. , Part II ;
Wolff , M.E. , Ed. Wiley ; New York, Chichester, Brisbane, Toronto , 1979 ; 219 – 222 .
4. Sensi , P.
Gialdroni-Grassi , G. In Burger's Medicinal Chemistry, , 4th Ed. , Part II ; Wiley : New York , Chichester, Brisbane, Toronto , 1979 ; 311 – 315 .
5. Twelfth report of the Joint FAO/WHO Expert Commitee on Food Additives. World Health Organization, Technical Report Series No 430 , WHO , Geneva , 1969 ; 16 .