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♦ 1Analysing diet of small herbivores: the efficiency of DNA barcoding coupled with high-throughput pyrosequencing for deciphering the composition of complex plant mixtures, Eeva M Soininen, Alice Valentini, Eric Coissac, Christian Miquel, Ludovic Gielly, Christian Brochmann, Anne K Brysting, Jørn H Sønstebø, Rolf A Ims, Nigel G Yoccoz and Pierre Taberlet, Frontiers in Zoology 2009, 6:16
♦ 2Starling-Westerberg, A. N. N. E. (2001).
The habitat use and diet of black grouse Tetrao tetrix in the Pennine hills of northern England. Bird Study, 48(1), 76-89.