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