@techreport{Ball2003,
author = {Ball, P. and Asher, J. and Sulmont, D. and Manrique, D.},
title= {How many Peruvians have died? An estimate of the total number of victims killed or disappeared in the armed internal conflict between 1980 and 2000},
year = {2003},
URL = {http://shr.aaas.org/peru/aaas_peru_5.pdf},
publisher = {American Association for the Advancement of Science},
address = {Washington, D.C.},
}