你不必检索别人的引用，自己用了什么就是什么，因为R一直在更新，你自己用的未必是别人引用的04、05或06年的R版本。打开你自己的R，启动的时候就会告诉你如何引用。如：
yihui@xie:~$ R</p>
<p>R version 2.10.1 (2009-12-14)<br />
Copyright (C) 2009 The R Foundation for Statistical Computing<br />
ISBN 3-900051-07-0</p>
<p>R is free software and comes with ABSOLUTELY NO WARRANTY.<br />
You are welcome to redistribute it under certain conditions.<br />
Type 'license()' or 'licence()' for distribution details.</p>
<p> Natural language support but running in an English locale</p>
<p>R is a collaborative project with many contributors.<br />
Type 'contributors()' for more information and<br />
'citation()' on how to cite R or R packages in publications.</p>
<p>Type 'demo()' for some demos, 'help()' for on-line help, or<br />
'help.start()' for an HTML browser interface to help.<br />
Type 'q()' to quit R.</p>
<p>> citation()</p>
<p>To cite R in publications use:</p>
<p> R Development Core Team (2009). R: A language and environment for<br />
statistical computing. R Foundation for Statistical Computing,<br />
Vienna, Austria. ISBN 3-900051-07-0, URL http://www.R-project.org.</p>
<p>A BibTeX entry for LaTeX users is</p>
<p> @Manual{,<br />
title = {R: A Language and Environment for Statistical Computing},<br />
author = {{R Development Core Team}},<br />
organization = {R Foundation for Statistical Computing},<br />
address = {Vienna, Austria},<br />
year = {2009},<br />
note = {{ISBN} 3-900051-07-0},<br />
url = {http://www.R-project.org},<br />
}</p>
<p>We have invested a lot of time and effort in creating R, please cite it<br />
when using it for data analysis. See also ‘citation("pkgname")’ for<br />
citing R packages.<br />
如果你用了具体的R附加包，那么也许还需要｀citation('包名')｀，如：
> citation('animation')<br />
To cite package ‘animation’ in publications use:</p>
<p> Yihui Xie (2010). animation: Demonstrate Animations in Statistics. R<br />
package version 1.1-1. http://CRAN.R-project.org/package=animation</p>
<p>A BibTeX entry for LaTeX users is</p>
<p> @Manual{,<br />
title = {animation: Demonstrate Animations in Statistics},<br />
author = {Yihui Xie},<br />
year = {2010},<br />
note = {R package version 1.1-1},<br />
url = {http://CRAN.R-project.org/package=animation},<br />
}<br />
你提到的第4篇文章有它自身的特殊地位（第一篇正式介绍R的学术论文），你可以看情况决定是否引用。
</p>
