@techreport{Walper2021,
author = {Walper, S. and Sawatzki, B. and Alt, P. and Reim, J. and Schmiedeberg, C. and Thönissen, C. and Wetzel, M.},
title= {The pairfam COVID-19 survey: Design and instruments},
year = {2021},
publisher = {GESIS},
address = {Mannheim},
institution = {pairfam Technical Papers 15},
}