@techreport{Lumley2023,
author = {Lumley, T.},
title= {Survey: Analysis of complex survey samples. R package version 4.2. R Core Team R: A language and environment for statistical computing. (R package version 4.2.)},
year = {2023},
URL = {https://www.R-project.org},
publisher = {R Foundation for Statistical Computing},
address = {Vienna},
}