by Sæther, Bernt-Erik, Engen, Steinar, Møller, Anders Pape, Matthysen, Erik, Adriaensen, Frank, Fiedler, Wolfgang, Leivits, Agu, Lambrechts, Marcel M., Visser, Marcel E., Anker-Nilssen, Tycho, Both, Christiaan, Dhondt, André A., McCleery, Robin H., McMeeking, John, Potti, Jamie, Røstad, OleWiggo, Thomson, David
Published in Proceedings of the Royal Society. B, Biological sciences (22.11.2003)