Klopfer, P., Krystal, A. D., Williams, C. V., & Yoder, A. D. Neuroethology: Do hibernating lemurs sleep? / Peter Klopfer. Andrew D. Krystal. Quo vadis, behavioural biology? : past, present, and future of an evolving science ; international symposium of the Humboldt-Universität zu Berlin and the German National Academy of Sciences Leopoldina, Berlin, April 30 to May 4, 2009 ; with 2 tables.(2013).
Παραπομπή σε μορφή Chicago (17η εκδ.)Klopfer, Peter, Andrew D. Krystal, Cathy V. Williams, και Anne D. Yoder. "Neuroethology: Do Hibernating Lemurs Sleep? / Peter Klopfer. Andrew D. Krystal." Quo Vadis, Behavioural Biology? : Past, Present, and Future of an Evolving Science ; International Symposium of the Humboldt-Universität Zu Berlin and the German National Academy of Sciences Leopoldina, Berlin, April 30 to May 4, 2009 ; with 2 Tables.(2013) .
Παραπομπή σε μορφή MLA (8th εκδ.)Klopfer, Peter, et al. "Neuroethology: Do Hibernating Lemurs Sleep? / Peter Klopfer. Andrew D. Krystal." Quo Vadis, Behavioural Biology? : Past, Present, and Future of an Evolving Science ; International Symposium of the Humboldt-Universität Zu Berlin and the German National Academy of Sciences Leopoldina, Berlin, April 30 to May 4, 2009 ; with 2 Tables.(2013), .