Affiliation: | 1. Laboratory of Cellulose and Paper, Forest Research Center, INIA, Ctra.de la Coru?a km 7,5, 28040, Madrid, Spain 2. Department of Chemical Engineering, Universidad Complutense de Madrid, Avda. Complutense s/n, 28040, Madrid, Spain 3. Restoration Laboratory, Biblioteca Nacional de Espa?a, Po de Recoletos 20-22, 28071, Madrid, Spain 4. Paper and Fiber Research Institute (PFI), H?gskoleringen 6b, 7491, Trondheim, Norway
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