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Ramalho, M.; Rosa, J. F. Ecological Interaction Between the Tiny Keel Flowers of Stylosanthes Viscosa Sw. (Faboideae) and the Large Bee Xylocopa (Neoxylocopa) Cearensis Ducke, 1910 (Apoidea, Hymenoptera), in Tropical Sand Dune. Biota Neotrop. 2010, 10.