Spontaneous emergence of leaders and followers in foraging pairs - Cowlishaw, Guy; Pettifor, Richard A.; Rowcliffe, J. Marcus; Johnstone, Rufus A.; Rands, Sean A. (Macmillian Magazines Ltd., 2003)
http://dx.doi.org/10.1038/nature01630
Keywords: W; V; WW-YZ; TA-TD; U