The sociological dimension of the drug-traffic in the favelas of Rio de Janeiro By Ricardo Vélez Rodríguez (Strategic Research Center "Paulino Soares de Sousa" Coordinator - Federal University of Juiz de Fora) (Published in: City of God in Several Voices: Brazilian Social Cinema as Action. Edited with an Introduction by Else R P Vieira. Nottingham: Nottingham University Press / Critical, Cultural and Communications Press / Zoilus Press, 2005, p. 181-188)