Most common styles (e.g. APA, Harvard) include the date of access for an
electronic reference. While this may be an artifact of history, both
reviewers and editors are justified in asking authors to adhere to the
style used in a particular journal. That said, I don't see why Nature or
any other journal would refuse to include a reference that was properly
formatted.
Jim
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.