1. European Norm UNI EN314, pretreatment 5.1.3 for exterior plywood (1995)
2. Higuchi, M.; Roh, J.-K.; Tajima, S.; Irita, H.; Honda, T.; Sakata, I. 1994: Polymeric structures of Melamine-based composite adhesives, in Chapter 6, Adhesives and Bonded Wood Products (C.-Y. Hse, B. Tomita and S. J. Branham, Eds.), Forest Products Society, Madison, Wisconsin, 429–449
3. Meyer, B. 1979: Urea-formaldehyde resins, Addison-Wesley, Reading, Massachussets.
4. Pizzi, A. 1981: A new series of tannin adhesives for exterior particleboard, Int. J. of Adhesion and Adhesives, 2: 261–265
5. Pizzi, A. 1982: Pine tannin adhesives for particleboard, Holz Roh Werkstoff, 40: 293–299