Potts, S., Biesmeijer, J., Bommarco, R., Felicioli, A., Fischer, M., Jokinen, P., Kleijn, D., Klein, A.-M., Kunin, W., Neumann, P., Penev, L., Petanidou, T., Rasmont, P., Roberts, S., Smith, H.
, Sørensen, P. B., Steffan-Dewenter, I., Vaissière, B., Vilà, M. ... Schweiger, O. (2011).
Developing European conservation and mitigation tools for pollination services: approaches of the STEP (Status and Trends of European Pollinators) project.
Journal of Apicultural Research,
50(2), 152-164.
Kohl, C., Craig, W., Frampton, G., Garcia-Yi, J., van Herck, K., Kleter, G. A.
, Krogh, P. H., Meissle, M., Romeis, J., Spök, A., Sweet, J., Wilhelm, R. & Schiemann, J. (2013).
Developing a good practice for the review of evidence relevant to GMO risk assessment.
IOBC/WPRS Bulletin,
97, 55-62.