Transgenic resistance of Bulgarian potato cultivars to the Colorado potato beetle based on Bt technology Ivanka Kamenova, Rossitza Batchvarova, Stanislaw Flasinski, Lidia Dimitrova, Petya Christova, Slavcho Slavov, Atanas Atanassov, Plamen Kalushkov and Wojciech KaniewskiAgron. Sustain. Dev., 28 4 (2008) 481-488DOI: https://doi.org/10.1051/agro:2008025