@techreport{Dabalen2016,
author = {Dabalen, A. and Etang, A. and Hoogeveen, J. and Mushi, E. and Schipper, Y. and Engelhardt, J.},
title= {Mobile phone panel surveys in developing countries: A practical guide for microdata collection},
year = {2016},
doi = {10.1596/978-1-4648-0904-0},
publisher = {World Bank Group},
address = {Washington, DC},
}