http://cran.r-project.org/src/contrib/Descriptions/plm.html

plm: Linear models for panel data

A set of estimators and tests for panel data

Version:	0.1-1
Depends:	R (>= 1.8.0)
Suggests:	Ecdat
Date:	2005-06-06
Author:	Yves Croissant
Maintainer:	Yves Croissant
License:	GPL version 2 or newer