Blom, A. G., Cornesse, C., Friedel, S., Krieger, U., Fikel, M., Rettig, T., Wenz, A., Juhl, S., Lehrer, R., Möhring, K., Naumann, E., & Reifenscheid, M. (2020). High Frequency and High Quality Survey Data Collection. Survey Research Methods, 14(2), 171-178. https://doi.org/10.18148/srm/2020.v14i2.7735