| Ricketts, TH; Regetz, J; Steffan-Dewenter, I; Cunningham, SA; Kremen, C; Bogdanski, A; Gemmill-Herren, B; Greenleaf, SS; Klein, A-M; Mayfield, MM; Morandin, LA; Ochieng, A; Viana, BF: Landscape effects on crop pollination services: are there general patterns?, Ecology Letters, 11, 499-515 (2008), doi:10.1111/j.1461-0248.2008.01157.x | |
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