1. Flexible Imputation of Missing Data, Second Edition
2. Mice: multivariate imputation by chained equations in R;Buuren S.;Journal of Statistical Software,2011
3. Locally weighted regression: an approach to regression analysis by local fitting;Cleveland W.S.;Journal of the American Statistical Association,1988
4. Durand C. Peña Ibarra L.P. Rezgui N.et al. (2020).Replication data for: institutional trust in the world. Université de Montréal Dataverse V1.https://doi.org/10.5683/SP2/TGJV6G.