Butt, K. R., Briones, M. J. I., & Lowe, C. (2010). Is tagging with visual implant elastomer a reliable technique for marking earthworms?. Pesquisa Agropecuaria Brasileira, 44(8), 969–974. https://doi.org/10.1590/S1678-3921.pab2009.v44.1348