Authors: Bryan G. Fry, Nicolás Vidal, Janette A. Norman, Freek J. Vonk, Holger Scheib, S. F. Ryan Ramjan, Sanjaya Kuruppu, Kim Y. C. Fung, S. Blair Hedges, Michael K. Richardson, Wayne C. Hodgson, Vera Ignjatović, Robyn Summerhayes, Elazar Kochva - Nature 2005 cited by 609
