BIBLIOGRAPHY:
1. Fritz Haarmann Case File, www.crimerack.com/tag/friedel-rothe/
2. Fritz Haarmann, www.mecshenleer.blogspot.com/2010/04/fritz-harrmann.html
3. Fritz Haarmann, en.wikipedia.org/wiki/Fritz_Haarmann
4. Friedrich Haarmann-Murdrepedia, murderpedia.org/male.H/h/haarmann.htm
5. The Butcher of Hanover: The Life of Serial Killer Fritz Haarmann, https:/www.voicesyahoo.com/the-butcher-of-hanover-life-serial-killer-fritz-372622.html
6. Fritz Haarmann-Criminal Minds Wiki, criminalminds.wikia.com/wiki/Fritz_Haarmann
7. Fritz Haarmann: The Butcher of Hannover<Crime Library, www.trutv.com/library/crime/serial_killers/history/haarmann/sentence_4.htm.
1. Fritz Haarmann Case File, www.crimerack.com/tag/friedel-rothe/
2. Fritz Haarmann, www.mecshenleer.blogspot.com/2010/04/fritz-harrmann.html
3. Fritz Haarmann, en.wikipedia.org/wiki/Fritz_Haarmann
4. Friedrich Haarmann-Murdrepedia, murderpedia.org/male.H/h/haarmann.htm
5. The Butcher of Hanover: The Life of Serial Killer Fritz Haarmann, https:/www.voicesyahoo.com/the-butcher-of-hanover-life-serial-killer-fritz-372622.html
6. Fritz Haarmann-Criminal Minds Wiki, criminalminds.wikia.com/wiki/Fritz_Haarmann
7. Fritz Haarmann: The Butcher of Hannover<Crime Library, www.trutv.com/library/crime/serial_killers/history/haarmann/sentence_4.htm.