ROSA ELIZABETH ACEVEDO MARIN is Professor in the Post-Graduate Program in Anthropology and the Center for Amazonian Studies of the Federal University of Pará, Brazil. She has a Ph.D in History from the Ecole des Hautes Etudes en Sciences Sociales, Paris, France.
ASSIS DA COSTA OLIVEIRA is Professor of Human Rights and coordinator of the Graduate School in Ethnodevelopment of the Federal University (UFPA) of Pará, Brazil. He is a lawyer with a Masters from the Post-Graduate Program in Law at UFPA and Doctoral Candidate from the Post-Graduate Program in Law at University of Brasília, Brazil. Outreach Coordinator for the Institute of Research, Rights and Social Movements.