Robert F. Borkenstein Courses [online]. Center for Studies of Law in Action, Indiana University. Dostupné online. Archivované 2019-08-01 z originálu.
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WOO, Elaine. Robert Borkenstein, 89; Inventor of Breathalyzer Intoxication Tester [online]. Los Angeles Times, 2002-08-18, [cit. 2017-08-09]. Dostupné online.
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MARTIN, Douglas. Robert F. Borkenstein, 89, Inventor of the Breathalyzer [online]. The New York Times, 2002-08-17, [cit. 2019-03-17]. Dostupné online.
theguardian.com
REED, Christopher. Obituary: Robert Borkenstein [online]. The Guardian, 2002-08-20, [cit. 2019-03-17]. Dostupné online.
web.archive.org
Robert F. Borkenstein Courses [online]. Center for Studies of Law in Action, Indiana University. Dostupné online. Archivované 2019-08-01 z originálu.