@techreport{Himelein2016,
author = {Himelein, K. and Eckman, S. and Murray, S. and Bauer, J.},
title= {Second-stage sampling for conflict areas: Methods and implications},
year = {2016},
publisher = {World Bank Group },
address = {Washington, D.C.},
number = {Policy Research Working Paper 7617},
}