Reference:
  Author: Henrik Bengtsson
  Title: "The R.oo package - Object-Oriented Programming with References Using Standard R Code"
  Journal: "Proceedings of the 3rd International Workshop on Distributed Statistical Computing (DSC 2003)"
  Year: 2003
  ISSN: 1609-395X
  URL: http://www.r-project.org/conferences/DSC-2003/Proceedings/
  eprint: http://www.r-project.org/conferences/DSC-2003/Proceedings/Bengtsson.pdf

