REFERENCES

Roy T. Fielding, Jim Gettys, Jeffrey C. Mogul, Henrik Frystyk Nielsen,
and Tim Berners-Lee.  _Hypertext Transfer Protocol--HTTP/1.1_.
RFC2616

Y. Y. Goland, E. J. Whitehead, Jr., A. Faizi, S. R. Carter, and
D. Jensen.  _Extensions for Distributed Authoring on the World Wide
Web -- WEBDAV_.  RFC2518

Jeffrey Mogul and Arthur van Hoff.  _Duplicate Suppression in HTTP_.
Internet-Draft draft-mogul-http-dupsup-00, HTTP Working Group,
April, 1998.

Arthur van Hoff, John Giannandrea, Mark Hapner, Steve Carter, and Milo
Medin.  _The HTTP Distribution and Replication Protocol_.  Technical
Report NOTE-DRP, World Wide Web Consortium, August, 1997.
<URL:http://www.w3.org/TR/NOTE-drp-19970825.html>.