Queiroz, Paulo Roberto, et al. “Survival in Soil and Detection of Co-Transformed <i>Trichoderma harzianum< i> By Nested PCR”. Pesquisa Agropecuaria Brasileira, vol. 39, no. 4, Apr. 2004, pp. 403-5, doi:10.1590/S1678-3921.pab2004.v39.6787.