@electronic{www.da-sense.de,
   title       = {da_sense}, 
   url         = {http://www.da-sense.de/},
   biburl      = {https://puma.uni-kassel.de/url/7ffdafee1955ebb23fcdf2c5b847ee9f/stumme},
   keywords    = {da-sense everyaware noise noisesense pollution sitc widenoise},
   added-at    = {2013-07-18T23:42:45.000+0200},
   description = {},
   interhash   = {7ffdafee1955ebb23fcdf2c5b847ee9f}, 
   intrahash   = {7ffdafee1955ebb23fcdf2c5b847ee9f}
}

@electronic{www.widetag.com,
   title       = {WideNoise · Ever heard of sound pollution?}, 
   url         = {http://www.widetag.com/widenoise/},
   biburl      = {https://puma.uni-kassel.de/url/fc3045be3be6295a4960949848ad10ec/hotho},
   keywords    = {everyaware pollution sound widenoise},
   added-at    = {2011-03-14T10:09:49.000+0100},
   description = {Detect the sound noise on the go on your iPhone and iPod Touch},
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   intrahash   = {fc3045be3be6295a4960949848ad10ec}
}