@article{Gummer2020a,
author = "Gummer, T., Schmiedeberg, C., Bujard, M., Christmann, P., Hank, K., Kunz, T., … Neyer, F. J",
title = "The impact of COVID-19 on fieldwork efforts and planning in pairfam and FReDA-GGS. ",
year = 2020,
journal = "Survey Research Methods",
volume = 14,
pages = "223-227",
url = "https://doi.org/10.18148/srm/2020.v14i2.7740"
}