1. AOAC . 1990 . Official Methods of Analysis , 10th ed. , p.976 . 976 . Association of Official Analytical Chemists. Arlington, VA.
2. AOAC . 1998 . Official Methods of Analysis , 15thed. , Ch. 39.1.03, p.13 -15 . Association of Official Analytical Chemists, Gaithersburg, MD.
3. Non-enzymic glycation of fibrous collagen: reaction products of glucose and ribose