1. , , , in: Kirk-Othmer: Encyclopedia of Chemical Technology, Vol. 5, Third Edition, John Wiley & Sons, 1979, p.89.
2. , , in: Macromolecular Sumposia 208: Cellulose Acetates: Properties and Applications, Ed. Wiley-VCH, Weinheim 2004, p.323.
3. in: Macromolecular Sumposia 208: Cellulose Acetates: Properties and Applications, Ed. Wiley-VCH, Weinheim 2004, p.353.
4. in: Macromolecular Sumposia 208: Cellulose Acetates: Properties and Applications, Ed. Wiley-VCH, Weinheim 2004, p.81.