Liddell, Michael J., Nieullet, Nicolas, Campoe, Otavio C., and Freiberg, Martin (2007) Assessing the above-ground biomass of a complex tropical rainforest using a canopy crane. Austral Ecology, 32 (1). pp. 43-58.

Freiberg, Martin, and Turton, Stephen M. (2007) Importance of drought on the distribution of the birds nest fern, Asplenium nidus, in the canopy of a lowland tropical rainforest in north-eastern Australia. Austral Ecology, 32 (1). pp. 70-76.