Gomes, Marco Antonio Bensimon, et al. “Nutritional Composition and Ruminal Degradability of Corn Silage (Zea Mays L.) With Addition of Glycerin in Silage”. Semina: Ciências Agrárias, vol. 36, nº 3Supl1, julho de 2015, p. 2079-92, doi:10.5433/1679-0359.2015v36n3Supl1p2079.