Elasto-mechanical properties of thermo-hygro-mechanical (THM) densified oil palm sawn timber
N. Kölli, K. Frühwald-König, Wood Material Science and Engineering  (2024) 1–18.

Hygroscopic behavior of thermo-hygro-mechanical (THM) densified oil palm sawn timber
N. Kölli, K. Frühwald-König, M. Hackel, Wood Material Science &; Engineering (2024) 1–12.

Densification and Press-Drying of Wet Oil Palm Lumber
N. Kölli, in: T.M. Young , A. Petutschnigg (Eds.), 6th International Conference on  Process Technologies for the Forest  and Biobased Products Industries  PTF BPI 2021 , 2021.