Callegari, Marco Aurelio, et al. “Microencapsulated Acids Associated With Essential Oils and Acid Salts for Piglets in the Nursery Phase”. Semina: Ciências Agrárias, vol. 37, no. 4, Aug. 2016, pp. 2193-08, doi:10.5433/1679-0359.2016v37n4p2193.