1. Partielle Hydrolyse der Tunicatencellulose, Bildung von Cellobiose;Abderhalden;Hoppe-Seyler's Z. physiol. Chem.,1911
2. Isolation of hyaluronic acid from human synovial fluid by pronase digestion and gel filtration;Barker;Carbohydrate Res.,1966
3. Polysaccharidases;Bernfeld,1962
4. Histological and histochemical examination of tunic formation of the Ciona intestinalis;Bierbauer;Acta biol. Acad. Sci. Hungary,1962
5. Amino Acid Determination. Methods and Techniques;Blackburn,1968