@techreport{Bergmann2017,
author = {Bergmann, M. and Kneip, T. and De Luca, G. and Scherpenzeel, A.},
title= {Survey participation in the survey of health, ageing and retirement in Europe (SHARE), Wave 1–6},
year = {2017},
publisher = {Munich Center for the Economics of Aging},
address = {Munich},
}