A. Goncalves, A. Cruz, J. Sales, M. Souza, F. Silva, D. Guimaraes, S. Mattedi, N. Jose, Achievement and Characterization of Cellulose Nanowhiskers of Palm (Elaeis Guineensis) and Bromelia Fibers (Neoglaziovia Variegate), Chemical Engineering Transactions. 50 (2016) 403-408. doi:10.3303/CET1650068.