Geissmann, T (2012). Mensch und Gibbon. In: Auffermann, B; Pannhorst, K; Schneider, B. Wie Menschen Affen sehen. Mettmann: Stiftung Neanderthal Museum, 72-83.
Rawson, Benjamin M; Insua-Cao, Paul; Manh Ha, Nguyen; Ngoc Thinh, Van; Minh Duc, Hoang; Mahood, Simon; Geissmann, Thomas; Roos, Christian (2011). The conservation status of gibbons in Vietnam. Hanoi, Vietnam: Fauna & Flora International and Conservation International.
Geissmann, T; Parsons, S (2011). Recording primate vocalizations. In: Setchell, J M; Curtis, D J. Field and laboratory methods in primatology: A practical guide, second edition. Cambridge: Cambridge University Press, 287-303.
Grueter, C C; Jiang, X; Konrad, R; Fan, P; Guan, Z; Geissmann, T (2009). Are Hylobates lar Extirpated from China?.International Journal of Primatology, 30(4):553-567.