Lavezzo, Wagner, et al. “Effects of Wilting, Formol, Formic Acid and ‘Viher’ Solution on Mineiro and Vruckwona Cultivars Silage Quality of Elephant-Grass”. Pesquisa Agropecuaria Brasileira, vol. 25, no. 1, Apr. 2014, pp. 125-34, https://doi.org/10.1590/S1678-3921.pab1990.v25.13354.