Schiefenhövel, W.: Explaining the inexplicable: Traditional and syncretistic religiosity in Melanesia. In: Biological evolution of religious mind and behavior, pp. 143 - 164 (Eds. Voland, E.; Schiefenhövel, W.). Springer, Heidelberg (2009)

Schiefenhövel, W.; Voland, E.: Introduction. In: Biological evolution of religious mind and behavior, pp. 1 - 7 (Eds. Voland, E.; Schiefenhövel, W.). Springer, Heidelberg (2009)

Schlenker, R.: Vogelbücher. In: Lexikon des gesamten Buchwesens, Vol. 8, Lieferung 58, 2 Ed., pp. 135 - 137 (Eds. Corsten, S.; Pflug, G.). Hiersemann, Stuttgart (2009)

Siemers, B. M.; Page, R. A.: Behavioral studies of bats in captivity: Methodology, training and experimental design. In: Ecological and behavioral methods for the study of bats, 2 Ed., pp. 373 - 392 (Eds. Kunz, T. H.; Parsons, S.). Johns Hopkins University Press, Baltimore (2009)

Wickler, W.: Vögel singen grammatisch geordnete Duette. Wozu? In: Vogelstimmen in Musik und Naturwissenschaft, pp. 11 - 17 (Ed. Pöllath, J.). Books on Demand GmbH, Norderstedt (2009)