Beaune, D., L. Bollache, B. Fruth, G. Hohmann, and F. Bretagnolle. “Density-Dependent Effect Affecting Elephant Seed-Dispersed Tree Recruitment (Irvingia Gabonensis) in Congo Forest”. Pachyderm, vol. 52, Dec. 2012, pp. 97-100, https://pachydermjournal.org/index.php/pachyderm/article/view/312.