+[1] Do You See What I See? Differential Treatment of Anonymous Users. Khattak et al. 2016. <https://discovery.ucl.ac.uk/id/eprint/1472066/>
+
+[2] Torproject, Dont Block Me. <https://gitlab.torproject.org/legacy/trac/-/wikis/org/projects/DontBlockMe>
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+[3] Torproject, List of services blocking Tor. <https://gitlab.torproject.org/legacy/trac/-/wikis/org/doc/ListOfServicesBlockingTor>
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+[4] Extrait du 31C3 (2014) et 32C3 (2015) via Youtube. <https://www.youtube.com/watch?v=sK_7NQ9_tzg>
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+[5]Mike Gerwitz, 2018. <https://mikegerwitz.com/2018/10/webmasters-please-dont-block-tor>