1. M.J. Herskovits, Man and His Works (Knopf, New York, 1952)
2. P.T. Nicholson, I. Shaw, Ancient Egyptian Materials and Technology (Cambridge University Press, Cambridge, 2000)
3. J. Kolar, M. Strlič, G. Novak, B. Pihlar, J. Pulp Pap. Sci. 24, 89 (1998)
4. S. Šelih, M. Strlič, J. Kolar, B. Pihlar, Polym. Degrad. Stab. 92, 1476 (2007)
5. I. Degano, E. Ribechini, F. Modugno, M.P. Colombini, Appl. Spectrosc. Rev. 44(5), 363 (2009)