Effects of tobacco genetically modified to express protease inhibitor bovine spleen trypsin inhibitor on non-target soil organismsMaureen O'Callaghan, Michael Brownbridge, Wendy B. Stilwell, Emily M. Gerard, Elisabeth P.J. Burgess, Emma I. Barraclough and John T. ChristellerEnviron. Biosafety Res., 6 3 (2007) 183-195DOI: https://doi.org/10.1051/ebr:2007041