1. Andersen, S. O.: Covalent cross-links in structural protein, resilin. Acta physiol. scand.66, Suppl. 263, 1–57 (1966).
2. Anwar, R. A.: Comparison of elastins from various sources. Canad. J. Biochem.44, 725–734 (1966).
3. Cremer, H. D., Führ, J.: Untersuchung der Organe. In: Handbuch der physiologisch-und pathologisch-chemischen Analyse. 10th Ed., vol. 5, p. 457. Berlin-Göttingen-Heidelberg: Springer 1953.
4. Hannig, K.: Tierische Gerüst- und Faserproteine. In: Biochemisches Taschenbuch. H. M. Rauen, Ed. Vol. I, p. 793. Berlin-Heidelberg-New York: Springer 1964.
5. Hult, A.-M., Goltz, R. W.: The measurement of elastin in human skin and its quantity in relation to age. J. invest. Derm.44, 408–412 (1965).