Lemurs
Baker-Médard, M., M.C. Baker, D.M. Logue (2013). Chorus song of the Indri (Indri indri: Primates, Lemuridae): group differences and analysis of within-group vocal interactions. International Journal of Comparative Psychology 26(3):241-255.
Schwitzer, C., M. Baker-Médard, R. Dolch et al. “Factors Contributing to Lemur Population Decline on a National Scale, and Proposed Immediate and Longer-Term Mitigation Actions.” In Lemurs of Madagascar: A Strategy for Their Conservation 2013–2016. Schwitzer C., Mittermeier R., Davies N., et al. (Eds). Bristol, IUCN. 2013