@electronic{doi.org,
   title       = {Bitcoin's Growing Energy Problem}, 
   url         = {https://doi.org/10.1016/j.joule.2018.04.016},
   biburl      = {http://puma.uni-kassel.de/url/fe2fd05087ed30fa908b7ce1ab987cf1/03367797},
   keywords    = {bitcoin dlt energy},
   added-at    = {2018-11-02T11:15:27.000+0100},
   description = {Alex de Vries: Study abaout Bitcoins Energy Consumption},
   interhash   = {fe2fd05087ed30fa908b7ce1ab987cf1}, 
   intrahash   = {fe2fd05087ed30fa908b7ce1ab987cf1}
}

@electronic{www.google.com,
   title       = {Bitcoin: A Peer-to-Peer Electronic Cash System}, 
   url         = {https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwjSo9rdurXeAhVIglwKHWvmDDsQFjAAegQICBAC&url=https%3A%2F%2Fbitcoin.org%2Fbitcoin.pdf&usg=AOvVaw05-4mYD7EyyKjwcHh8i0Vw},
   biburl      = {http://puma.uni-kassel.de/url/e7962f5595d4f6270b24ecd142c1158f/03367797},
   keywords    = {bitcoin blockchain dlt nakamoto satoshi whitepaper},
   added-at    = {2018-11-02T11:08:06.000+0100},
   description = {Satoshi Nakamoto Bitcoin Whitepaper 2008},
   interhash   = {e7962f5595d4f6270b24ecd142c1158f}, 
   intrahash   = {e7962f5595d4f6270b24ecd142c1158f}
}

@electronic{www.ph-freiburg.de,
   title       = {Pädagogische Hochschule Freiburg: Online-Selbstlernmaterial}, 
   url         = {https://www.ph-freiburg.de/hochschule/weitere-einrichtungen/schreibzentrum/beratung/online-selbstlernmaterial.html},
   biburl      = {http://puma.uni-kassel.de/url/df36f074c4cd4230bfde9fd97bbd3afe/03469646},
   keywords    = {7schritte recherchieren schreibening schreibenkuwis},
   added-at    = {2018-04-24T14:31:52.000+0200},
   description = {},
   interhash   = {df36f074c4cd4230bfde9fd97bbd3afe}, 
   intrahash   = {df36f074c4cd4230bfde9fd97bbd3afe}
}

@electronic{www.laborjournal.de,
   title       = {Laborjournal - Methoden - Ein guter Abstract}, 
   url         = {http://www.laborjournal.de/rubric/methoden/methoden/v99.lasso},
   biburl      = {http://puma.uni-kassel.de/url/7a8639adc0f61d4567f8fee89e5172f4/03469646},
   keywords    = {schreibening},
   added-at    = {2018-04-24T14:28:57.000+0200},
   description = {Wer einen guten Abstract verfassen will, schreibt ihn zuerst.},
   interhash   = {7a8639adc0f61d4567f8fee89e5172f4}, 
   intrahash   = {7a8639adc0f61d4567f8fee89e5172f4}
}

@electronic{www.uni-bielefeld.de,
   title       = {Leitfaden zum Schreiben eines Protokolls}, 
   url         = {http://www.uni-bielefeld.de/erziehungswissenschaft//scs/pdf/leitfaeden/studierende/protokoll.pdf},
   biburl      = {http://puma.uni-kassel.de/url/7e1db3986d899f38f1cd531eb9f78534/03469646},
   keywords    = {schreibening schreibenkuwis},
   added-at    = {2018-04-24T14:28:17.000+0200},
   description = {},
   interhash   = {7e1db3986d899f38f1cd531eb9f78534}, 
   intrahash   = {7e1db3986d899f38f1cd531eb9f78534}
}