Munzinger Personen, oppført som Viktor E. Frankl, Munzinger IBA 00000005154, besøkt 9. oktober 2017[Hentet fra Wikidata]
nytimes.com
Noble, Holcomb B. (4. september 1997). «Dr. Viktor E. Frankl of Vienna, Psychiatrist of the Search for Meaning, Dies at 92». The New York Times(engelsk). ISSN0362-4331. Besøkt 12. august 2019. «Viktor Frankl's mother, father, brother and pregnant wife were all killed in the camps. He lost everything, he said, that could be taken from a prisoner, except one thing: the last of the human freedoms, to choose one's attitude in any given set of circumstances, to choose one's own way.»
pamatnik-terezin.cz
Database of the Terezín Memorial, Terezín Memorial Database ID te-frankl-viktor, besøkt 15. mars 2021[Hentet fra Wikidata]
tidsskriftet.no
Skåi, Anders (26. juni 2003). «Betydningen av mening». Tidsskrift for Den norske legeforening(norsk). Besøkt 12. august 2019.
Noble, Holcomb B. (4. september 1997). «Dr. Viktor E. Frankl of Vienna, Psychiatrist of the Search for Meaning, Dies at 92». The New York Times(engelsk). ISSN0362-4331. Besøkt 12. august 2019. «Viktor Frankl's mother, father, brother and pregnant wife were all killed in the camps. He lost everything, he said, that could be taken from a prisoner, except one thing: the last of the human freedoms, to choose one's attitude in any given set of circumstances, to choose one's own way.»
