Edwards C J, Barnett R
Research Laboratory for Archaeology, University of Oxford, South Parks Road, Oxford OX1 3QY, UK
Natural History Museum of Denmark, Øster Voldgade 5-7, Copenhagen 1350, Denmark.
Proc Biol Sci. 2015 Feb 7;282(1800):20141712. doi: 10.1098/rspb.2014.1712.