Riedinger, V, Renner, M, Rundlöf, M, Steffan-Dewenter, I, Holzschuh, A (2014) Early mass-flowering crops mitigate pollinator dilution in late-flowering cropsLandscape Ecology 29 (3): 425-435. http://link.springer.com/article/10.1007%2Fs10980-013-9973-y