@electronic{read.amazon.com,
   title       = {Kindle Cloud Reader}, 
   url         = {https://read.amazon.com/},
   biburl      = {https://puma.uni-kassel.de/url/5e4642cf6bd577faf864c9ec922cdcde/stephandoerfel},
   keywords    = {amazon cloud ebook kindle reader},
   added-at    = {2011-08-19T09:19:55.000+0200},
   description = {},
   interhash   = {5e4642cf6bd577faf864c9ec922cdcde}, 
   intrahash   = {5e4642cf6bd577faf864c9ec922cdcde}
}

@electronic{de.wikipedia.org,
   title       = {Amazon Kindle – Wikipedia}, 
   url         = {http://de.wikipedia.org/wiki/Amazon_Kindle},
   biburl      = {https://puma.uni-kassel.de/url/041aa8efad768d52efa6be97b291c3d9/benz},
   keywords    = {amazon e-book ebook from:wikipedia kindle reader},
   added-at    = {2011-02-04T16:07:47.000+0100},
   description = {},
   interhash   = {041aa8efad768d52efa6be97b291c3d9}, 
   intrahash   = {041aa8efad768d52efa6be97b291c3d9}
}