Journal Article
Jakob, H.; Fengel, D.; Tschegg, S.; Fratzl, P.: The elementary cellulose fibril in Picea abies: comparison of transmission electron microscopy, small-angle X-ray scattering, and wide-angle X-ray scattering results. Macromolecules
28 (26), pp. 8782 - 8787 (1995)