See http://www.usenix.org/publications/library/proceedings/tcl96/ for Usenix information.  Also see
http://www.google.com/search?q=cache:gutim6t2PAE:www.sco.com/Technology/tcl/README/TclTkWkShop96.html+tcltkwkshop96&hl=en .

Why does the Wiki stop the second URL after "cache:"?  I don't know enough about the Wiki to fix it.  Maybe the URL needs better encoding? -- CLN