Reference

Melzer A, Carrick F, Menkhorst P, Lunney D & John BS (2000). Overview, critical assessment, and conservation implications of koala distribution and abundance. Conservation Biology 14(3):619–628.
McAlpine CA, Lunney D, Melzer A, Menkhorst P, Phillips S, Phalen D et al. (2015). Conserving koalas: a review of the contrasting regional trends, outlooks and policy challenges. Biological Conservation 192:226–236.