Outcrossed cottonseed and adventitious Bt plants in Arizona refugesShannon Heuberger, Christine Yafuso, Gloria Degrandi-Hoffman, Bruce E. Tabashnik, Yves Carrière and Timothy J. DennehyEnviron. Biosafety Res., 7 2 (2008) 87-96DOI: https://doi.org/10.1051/ebr:2008005