by Siani, Antonio C, Zoghbi, M. das G. B, Wolter, Esther L. A, Vencato, Ivo
Published in Journal of natural products (Washington, D.C.) (26.06.1998)

by Pereira Junior, OL, Wolter Filho, W, Wolter, ELA, Zoghbi, MGB, Siqueira, JBG, Pinheiro, CCS
Published in Acta amazonica (01.01.1993)