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citHeader("When using pwt8 in publications, please cite both the pwt8 package and the Penn World Table itself:")
if(!exists("meta") || is.null(meta)) meta <- packageDescription("pwt8")
year <- sub("-.*", "", meta$Date)
note <- sprintf("R package version %s", meta$Version)
citEntry(entry = "Manual",
title = "pwt8: Penn World Table (Version 8.0)",
author = personList(as.person("Achim Zeileis")),
year = year,
note = note,
url = "http://CRAN.R-project.org/package=pwt8",
textVersion =
paste("Achim Zeileis",
sprintf("(%s).", year),
"pwt8: Penn World Table (Version 8.0).",
paste(note, ".", sep = ""),
"URL http://CRAN.R-project.org/package=pwt8."),
header = "To cite pwt8, the R package, please use:"
)
citEntry(entry = "Manual",
title = "The Next Generation of the Penn World Table",
author = personList(as.person("Robert C. Feenstra"),
as.person("Robert Inklaar"),
as.person("Marcel P. Timmer")),
year = "2013",
month = "July",
organization = "Groningen Growth and Development Centre",
url = "http://www.ggdc.net/pwt/",
textVersion =
paste("Robert C. Feenstra, Robert Inklaar, Marcel P. Timmer (2013).",
"The Next Generation of the Penn World Table.",
"Groningen Growth and Development Centre.",
"URL http://www.ggdc.net/pwt/."),
header = "To cite the Penn World Table (version 8.0), please use:"
)
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