updating (detect changes, citation added)

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dcr@1056 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
updating (detect changes, citation added)

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dcr@1057 edb9625f-4e0d-4859-8d74-9fd3b1da38cb