http://www.robertsmithson.com/
http://en.wikipedia.org/wiki/Robert_Smithson
_ Spiral Jetty(excerpts)1970
http://www.youtube.com/watch?v=fTx4Pp4aPXA
_ Robert Smithson (with Nina Hagen)
http://www.youtube.com/watch?v=F1UYtqGpqZ4
http://www.robertsmithson.com/
http://en.wikipedia.org/wiki/Robert_Smithson
_ Spiral Jetty(excerpts)1970
http://www.youtube.com/watch?v=fTx4Pp4aPXA
_ Robert Smithson (with Nina Hagen)
http://www.youtube.com/watch?v=F1UYtqGpqZ4