The link you have just followed is an old one, pointing to a "info.cern.ch". All documents originally maintained by CERN on info.cern.ch are now maintained on "www.w3.org" by the W3 Consortium.

If you have troubles accessing www.w3.org then mail webmaster@w3.org

For now, you can jump on to the document in its new home but this forwarding message will not be maintained indefinitely.

This change is being implemented so that Web software does not eternally contain an obsolete geographical reference, and so that CERN's name server does not eternally contain an off-site pointer.

Brian Carpenter, CERN