@inproceedings{inproceedings1ba4aa6a,
title   = {Heliangolides and flavonols from ethanolic extracts of two species of proteopsis},
author = {Vichnewski, W and Favati, R},
year = {1997},
booktitle   = {International Joint Symposium Chemistry, Biological and Pharmacological Properties of Medicinal Plants from the Americas}
}