ŁĘCKA, Janina - MIRSKI, Radosław - MORZE, Zbigniew. Properties of particleboards glued with phenol-formaldehyde resin modified with esters : Part 1 - The influence of acid that forms the ester. In Annals of Warsaw agricultural university. - Warsaw Agricultural University Press : Warszawa. ISSN 0208-5704, 2001, special number 1, s. 118-125.