1. 1. J. H. Bowes, R. G. Elliott, J. A. Moss, and G. Stainsby , inRecent Advances in Gelatine and Glue Research (), Pergamon Press, London1958 , p.71 .
2. 3. L. Robert, J. Parlebas, P. Ondea, A. Zweibaum, and B. Robert , inStructure and Function of Connective and Skeletal Tissue , Butterworths, London1965 , p.406 .
3. Proteins of the human intervertebral disc the association of collagen with a protein fraction having an unusual amino acid composition