Antifungic and antibacterial activities of natural sesquiterpene lactones - Giesbrecht, Astrea Mennucci; Davino, S. C.; Lopes, João Luis Callegari; Lopes, José Norberto Callegari; Vichnewski, Walter; Dias, Dione Aparecida; Nasi, Ana Maria Tucci Turco (Brazilian-Sino Symposium on Chemistry and Pharmacology of Natural Products, 1989)