@electronic{www.geocachenavigator.com,
   title       = {Geocache Navigator™ - geocaching with a GPS phone. Seek & Enjoy™ > Home}, 
   url         = {http://www.geocachenavigator.com/},
   biburl      = {https://puma.uni-kassel.de/url/dcb11e03a99fa5a9e278d663347d8c7d/hotho},
   keywords    = {cache geo geocaching gps nokia s60},
   added-at    = {2008-09-20T19:12:37.000+0200},
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}

@electronic{www.geocaching.com,
   title       = {Geocaching - The Official Global GPS Cache Hunt Site}, 
   url         = {http://www.geocaching.com/},
   biburl      = {https://puma.uni-kassel.de/url/ca2c373bc420e81d7beb33c54a40db76/hotho},
   keywords    = {cache gps geo Schatzsuche},
   added-at    = {2006-08-25T09:24:42.000+0200},
   description = {},
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}