BEAR, R. S. : X-ray diffraction studies on protein fibers. I. The large fiber-axis period of collagen. J. Amer. Chem. Soc. 66: 1297 (1944).
BIRK, D. E., M. V. NURMINSKAYA and E. I. ZYCBAND: Collagen fibrillogenesis in situ : Fibril segments undergo post-depositional modifications resulting in linear and lateral growth during matrix development. Dev. Dyn. 202: 229-243 (1995).
BOUTEILLE, M. and D. C. PEASE: The tridimensional structure of native collagenous fibrils, their proteinaceous filaments. J. Ultrastr. Res. 35: 314-338 (1971).