Alfonso Marzal, Robert E. Ricklefs, Gediminas Valkiūnas, Tamer Albayrak, Elena Arriero, Camille Bonneaud, Gábor A. Czirják, John Ewen, Olof Hellgren, Dita Hořáková, Tatjana A. Iezhova, Henrik Jensen, Asta Križanauskienė, Marcos R. Lima, Florentino de Lope, Eyðfinn Magnussen, Lynn B. Martin, Anders P. Møller, Vaidas Palinauskas, Péter L. Pap, Javier Pérez-Tris, Ravinder N. M. Sehgal, Manuel Soler, Eszter Szöllősi, Helena Westerdahl, Pavel Zetindjiev, Staffan Bensch
PLoS One. 2011; 6(7): e21905. Published online 2011 Jul 11. doi: 10.1371/journal.pone.0021905