@Misc{hanl2018insights,
  author = {Hanl, Andreas},
  title  = {Some Insights into the Development of Cryptocurrencies},

  year   = {2018},
  number = {},
  url    = {https://www.uni-marburg.de/fb02/makro/forschung/magkspapers/paper_2018/04-2018_hanl.pdf},
  doi = {10.13140/RG.2.2.33318.01601},
  const  = {\ text}
}