Ramos, N.F. et al. 2013. PROFILE SURVEY OF WASTE PICKERS IN BRAZIL: REQUIREMENTS FOR THE DEVELOPMENT OF A COLLECTION VEHICLE AND OPTIMIZED ROUTING. Journal of Urban and Environmental Engineering. 7, 2 (Dec. 2013), 231–246. DOI:https://doi.org/10.4090/juee.2013.v7n2.231-246.