@electronic{www.useragentstring.com,
   title       = {UserAgentString.com - Firefox version 4.0}, 
   url         = {http://www.useragentstring.com/},
   biburl      = {https://puma.uni-kassel.de/url/ac5ad252e6df0f3b5cf85c06b837cfbd/benz},
   keywords    = {browser collection list reference useragent},
   added-at    = {2011-04-05T23:23:09.000+0200},
   description = {Understand what information is contained in a Java user agent string. Get an analysis of your or any other user agent string. Find lists of user agent strings from browsers, crawlers, spiders, bots, validators and others..},
   interhash   = {ac5ad252e6df0f3b5cf85c06b837cfbd}, 
   intrahash   = {ac5ad252e6df0f3b5cf85c06b837cfbd}
}

@electronic{chrispederick.com,
   title       = {User Agent Switcher}, 
   url         = {http://chrispederick.com/work/user-agent-switcher/},
   biburl      = {https://puma.uni-kassel.de/url/290538cc598797e6e5fd758a00c9a0ee/benz},
   keywords    = {addon extention firefox switch useragent},
   added-at    = {2011-02-04T16:09:05.000+0100},
   description = {The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of the browser. It is designed for Firefox, Flock and Seamonkey, and will run on any platform that these browsers support including Windows, Mac OS X and Linux.},
   interhash   = {290538cc598797e6e5fd758a00c9a0ee}, 
   intrahash   = {290538cc598797e6e5fd758a00c9a0ee}
}