@electronic{www.w3.org,
   title       = {W3C Web APIs Working Group}, 
   url         = {http://www.w3.org/2006/webapi/},
   biburl      = {https://puma.uni-kassel.de/url/c2ba63c394ae954412f440a7a388d827/hotho},
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@electronic{www.xfront.com,
   title       = {REST web services}, 
   url         = {http://www.xfront.com/REST-Web-Services.html},
   biburl      = {https://puma.uni-kassel.de/url/04bcb354d9bad1a90387a2ec541f19b1/hotho},
   keywords    = {web tutorial service guidelines api rest},
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@electronic{www.programmableweb.com,
   title       = {ProgrammableWeb: Web 2.0 API Reference}, 
   url         = {http://www.programmableweb.com/apis},
   biburl      = {https://puma.uni-kassel.de/url/07aa3b1e31b0c201c79ca60348ca1e99/hotho},
   keywords    = {web list 2.0 folksonomy api references links},
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}

@electronic{www.programmableweb.com,
   title       = {ProgrammableWeb - Mashups, APIs, and the Web as Platform}, 
   url         = {http://www.programmableweb.com/},
   biburl      = {https://puma.uni-kassel.de/url/fa9f2b091e585ffaed897ce82e2bf78d/hotho},
   keywords    = {2.0 api mashup survey tools web},
   added-at    = {2007-11-27T11:45:09.000+0100},
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@electronic{ontology.csse.uwa.edu.au,
   title       = {ontology}, 
   url         = {http://ontology.csse.uwa.edu.au/},
   biburl      = {https://puma.uni-kassel.de/url/3c254241e9caa9d867afb8280d244eb0/hotho},
   keywords    = {api learning ontology service tools web},
   added-at    = {2010-07-08T09:41:15.000+0200},
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