@techreport{Rutstein2006,
author = {Rutstein, S.O. and Rojas, G.},
title= {Guide to DHS statistics},
year = {2006},
URL = {http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.431.8235&rep=rep1&type=pdf},
publisher = {ORC Macro},
address = {Calverton, Maryland},
}