• Manufacturing and characterisation of Estonian urea-formaldehyde resinsSiimer, Kadri; Christjanson, Peep; Kaljuvee, Tiit; Suurpere, Aime; Pehk, Tõnis; Saks, Imre; Lasn, IlmarScientific proceedings of Riga Technical University. Serija 1, Material science and applied chemistry2007 / p. 48-55