1. Conservation of wild blueberry and cranberry pollinators. Producer Grant Final Report, FNE97-175. SARE program, National Institute of Food and Agriculture,1997
2. Bumblebees: The natural history and identification of the species found in Britain. Collins New Naturalist (Book 98);Benton,2006
3. Economics and honeybee pollination markets;Burgett;American Bee Journal,2004
4. Bee diversity in crop fields is influenced by remotely-sensed nesting resources in surrounding permanent grasslands;Carrié;Ecological Indicators,2018
5. Declines in forage availability for bumblebees at a national scale;Carvell;Biological Conservation,2006