Noble, L. (2019). Burning Books. Cambridge University Library. Процитовано 3 листопада 2019.
doi.org
von Merveldt, Nikola (Winter 2007). Books Cannot Be Killed by Fire: The German Freedom Library and the American Library of Nazi-Banned Books as Agents of Cultural Memory. Library Trends. 55 (3): 523—535. doi:10.1353/lib.2007.0026 — через EBSCO. {{cite journal}}: |hdl-access= вимагає |hdl= (довідка)
nyu.edu
sanger.hosting.nyu.edu
Staff (Winter 2002/2003) "The Sanger-Hitler Equation" New York University: The Margaret Sanger Papers Project, Newsletter #32