- Curing behaviour of urea-modified phenol-formaldehyde resinSiimer, Kadri; Süld, Tiia-Maaja; Kaljuvee, Tiit; Christjanson, Peep; Pehk, TõnisBook of abstracts of the Polymer Processing Society 9th Annual Meeting PPS-09 : Larnaca, Cypros, October 18-21, 20092009 / p. P-190