Here are links to articles written by Robert and currently available on the InterNet, though you may have to cut'n'paste the links into your Browser. The files are also available on here, see below.
http://copperroad.org/copperroad
http://copperroad.org/daisy.html
http://copperroad.org/moon.html
AND, other links to this article :-
http://www.xiangtan.co.uk/reading2shoebox.htm
http://libaioutstanding.blog.163.com/blog/static/101025332007317114021924
http://qz.qq.com/305266218/blog?uin=305266218&vin=0&blogid=30
http://83871313.blog.sohu.com/rss (half way down)
http://endchenyao.blog.163.com/blog/static/1216468722011021101322842
and a dozen more similar.
http://copperroad.org/rock
http://copperroad.org/salt
If you know of any others, please send them to me so that I can post them here for all to see.