@electronic{www.nimbuzz.com,
   title       = {Nimbuzz - Instant messaging and VoIP for you Mobile}, 
   url         = {http://www.nimbuzz.com/},
   biburl      = {https://puma.uni-kassel.de/url/84e93d6f57b231b7d4a1dedeb34c9270/hotho},
   keywords    = {application handy icq messaging s60 skype voip},
   added-at    = {2008-09-12T14:57:29.000+0200},
   description = {},
   interhash   = {84e93d6f57b231b7d4a1dedeb34c9270}, 
   intrahash   = {84e93d6f57b231b7d4a1dedeb34c9270}
}

@electronic{www.gizmovoip.com,
   title       = {Gizmo VoIP - Home}, 
   url         = {http://www.gizmovoip.com/learn},
   biburl      = {https://puma.uni-kassel.de/url/3acaa35928a41b3a08330311f6b7ab67/hotho},
   keywords    = {gizmo s60 voip},
   added-at    = {2008-09-10T10:52:58.000+0200},
   description = {},
   interhash   = {3acaa35928a41b3a08330311f6b7ab67}, 
   intrahash   = {3acaa35928a41b3a08330311f6b7ab67}
}

@electronic{www.ip-phone-forum.de,
   title       = {IP-Phone-Forum}, 
   url         = {http://www.ip-phone-forum.de/},
   biburl      = {https://puma.uni-kassel.de/url/d731d85fbd5e67ca78aa8176ab9febd2/hotho},
   keywords    = {box forum fritz voip wlan},
   added-at    = {2007-04-14T23:14:06.000+0200},
   description = {Willkommen auf IP-Phone-Forum.de!},
   interhash   = {d731d85fbd5e67ca78aa8176ab9febd2}, 
   intrahash   = {d731d85fbd5e67ca78aa8176ab9febd2}
}

@electronic{www.billig-tarife.de,
   title       = {Billig-Tarife.de - VoIP-Tarifrechner}, 
   url         = {http://www.billig-tarife.de/telefontarife/voip-vergleich.php},
   biburl      = {https://puma.uni-kassel.de/url/d5ea56c59c685d15915661bc3a85022e/hotho},
   keywords    = {voip tarife vergleich billig},
   added-at    = {2007-01-14T18:06:32.000+0100},
   description = {},
   interhash   = {d5ea56c59c685d15915661bc3a85022e}, 
   intrahash   = {d5ea56c59c685d15915661bc3a85022e}
}

@electronic{www.voip-info.de,
   title       = {VoIP-Info.de: Das deutschsprachige Voice over IP-Web-Portal}, 
   url         = {http://www.voip-info.de/},
   biburl      = {https://puma.uni-kassel.de/url/e6a4cd3a2ea9f2b0457d783352b187b6/hotho},
   keywords    = {voip},
   added-at    = {2007-01-06T22:17:23.000+0100},
   description = {},
   interhash   = {e6a4cd3a2ea9f2b0457d783352b187b6}, 
   intrahash   = {e6a4cd3a2ea9f2b0457d783352b187b6}
}

@electronic{www.onlinekosten.de,
   title       = {Onlinekosten.de - VoIP-Anbieter in Deutschland}, 
   url         = {http://www.onlinekosten.de/voip/anbieter},
   biburl      = {https://puma.uni-kassel.de/url/e6014c0faa27cd8457fbca65cffdd81d/hotho},
   keywords    = {voip tarife vergleich},
   added-at    = {2007-01-06T22:03:40.000+0100},
   description = {VoIP-Anbieter in Deutschland},
   interhash   = {e6014c0faa27cd8457fbca65cffdd81d}, 
   intrahash   = {e6014c0faa27cd8457fbca65cffdd81d}
}