Soares, Geraldo, et al. “In Vitro Antimicrobial Activity of Essential Oils from Heterothalamus Less. (Asteraceae) Against Clinically Relevant Bacterial and Fungal Species”. Revista Brasileira De Biociências, vol. 14, nº 1, março de 2016, https://seer.ufrgs.br/index.php/rbrasbioci/article/view/114703.