M. Casares, N. Garrido, J. Vidal, J.-M. Martínez-Jabaloyas, A.-C. Gerique, and M.-D. Carbonell, “Spontaneous recovery from reproductive failure in a hand-reared male western lowland gorilla (Gorilla gorilla gorilla)”, JZAR, vol. 2, no. 1, pp. 22–24, Jan. 2014.