@article{article46946495, title = {Further sesquiterpene lactones from viguiera robusta and the potential anti-inflammatory activity of a heliangolide: inhibition of human neutrophil elastase release}, author = {Arakawa, Nilton Syogo and Schorr, Karin and Ambrósio, Sérgio Ricardo and Merfort, Irmgard and Costa, Fernando Batista da}, year = {2008}, journal = {Zeitschrift fuer Naturforschung. Section C} }