1. The Manuscript Book, A Compendium of Codicology;Agati,2017
2. The structure of collagen within parchment – a review;Kennedy;Restaurator,2003
3. The manufacture of parchment;Haines,2006
4. The effects of relative humidity on some physical properties of modern vellum: implications for the optimum relative humidity for the display and storage of parchment;Hansen;JAIC,1992
5. M. Bicchieri, M. Monti, G. Piantanida, A. Sodo, Inside the parchment, in: 9th Int. Conference on NDT of Art, 2008, pp. 25–30.