Paper  bibtex   

@book{Roettgers2003,
  author    = {Janko R{\"o}ttgers},
  title     = {{Mix, Burn \& R.I.P. Das Ende der Musikindustrie}},
  year      = 2003,
  month     = 8,
  publisher = {dpunkt.verlag},
  address   = {Heidelberg},
  url={https://is.gd/Zq8ZL7},
annote = {
http://web.archive.org/web/20040615175350/http://www.heise.de/tp/deutsch/html/buch_10.pdf
},
  urldate={2016-09-29},
  isbn      = {3-936931-08-9},
}