[1]
Rinken, S., Domínguez-Álvarez, J.-A. , Trujillo, M., Lafuente, R., Sotomayor, R. and Serrano-del-Rosal, R. 2020. Combined mobile-phone and social-media sampling for web survey on social effects of COVID-19 in Spain. Survey Research Methods. 14, 2 (Jun. 2020), 165–170. DOI:https://doi.org/10.18148/srm/2020.v14i2.7733.