Sesquiterpenes lactones and flavonoids from Eremanthus argenteus (Asteraceae) - Sakamoto, Humberto Takeshi; Laudares, Eugênio Paceli; Crotti, Antônio Eduardo Miller; Lopes, Norberto Peporine; Vichnewski, Walter; Lopes, Joao Luis Callegari; Heleno, Vladimir Constantino Gomes (Natural Product Communications, 2010)