Konecka E., Baranek J., Bielińska I., Tadeja A., Kaznowski A. 2014. Persistence of the spores of B. thuringiensis subsp. kurstaki from Foray bioinsecticide in gleysol soil and on leaves. The Science of The Total Environment. 472: 296-301. doi:10.1016/j.scitotenv.2013.11.077