I'm pretty sure I've read an article about the Voynich script in a magazine that was published after this 2004 Economist Newspaper article.
http://www.economist.com/science/displayStory.cfm?story id=2329803
I just don't have the time to leaf through more than a 100 possible magazines where this 'follow up' on the Economist 2004 article was published. I do know the magazine is somewhere in my archive & I remember there were strong. scientific, carbondate like arguments for the claim that it's a 'hoax'.
Perhaps 'hoax' isn't the correct word to use, because the manuscript is a beautiful work of art.
I promise to look for it whenever the mood strikes, or when I can afford a secretary to do it for me.
Good hunting!