While doing the review of this article translation to pt_BR I saw that there is a URL
that point the user to a website hosted, at Geocities -- a free web hosting service 
that was shut down by yahoo in October 2009.
I was able to find the paper that was supposed to be hosted at Geocities in a public 
FTP Server at Department of Computer Science of ETH Zurich, than im suggesting that 
we update the article to change the paper URL, in the following way:
URL for Ueli Maurer's “Universal Statistical Test for Random Bit Generators” Paper: FROM: http://www.geocities.com/SiliconValley/Code/4704/universal.pdf TO: ftp://ftp.inf.ethz.ch/pub/crypto/publications/Maurer92a.pdf
And i`m suggesting also that we remove from the article the link to the file 
uliscanc.txt, that exist at begin of the last section of the article, since it also 
point the user to a file hosted at Geocities.
As the source code is present in the article, the removal of this link does not 
compromise the content.