Envelopes of evolved stars: galactic and Magellanic Clouds B[e] supergiants - Seriacopi, Daiane Breves; Magalhães, Antonio Mário; Carciofi, Alex Cavaliéri; Pereyra, Antonio; Borges, Marcelo; Domiciano de Souza, Armando; Araújo, Francisco; Bjorkman, Jon; Melgarejo Yrupailla, Rocío (Latin American Regional IAU Meeting, 2013)