The german c’t magazin published two articles by me:
“Schlüsseldienst” (Authentication technics for LANs an WLANs) and “Torwächter ” (WLAN-protection with RADIUS to build yourself).
Unfortunatly I’m not allowed to publish the articles on my website. If you’re interested in my writings, you may purchase the articles online here and here, order issue 18/2004 or just drop me a mail.