Biological activities of violacein, a new antitumoral indole derivative, in an inclusion complex with `beta´-ciclodextrina - Azevedo, Mariângela B M; Alderete, Joel B; Rodriguez, Jaime A; Souza, Ana O. de; Rettori, Daniel; Torsoni, Marcio A; Faljoni-Alário, Adelaide; Haun, Marcela; Durán, Nelson (Journal of Inclusion Phenomena and Macrocyclic Chemistry, 2000)