N. H. RESTREPO, M. M. PATIÑO, S. ORDUZ, T. DÍAZ, and W. ROJAS, “Characterization of genes coding for Bacillus thuringiensis ssp. medellin toxic proteins”, Rev. Colomb. Entomol., vol. 22, no. 1, pp. 7–12, Jan. 1996, doi: 10.25100/socolen.v22i1.9914.