Eleftheria Palkopoulou, Love Dalén, Adrian M. Lister, Sergey Vartanyan, Mikhail Sablin, Andrei Sher, Veronica Nyström Edmark, Mikael D. Brandström, Mietje Germonpré, Ian Barnes, Jessica A. Thomas
Proc Biol Sci. 2013 Nov 7; 280(1770): 20131910. doi: 10.1098/rspb.2013.1910