Horn, Christoph (Autor Personal)

Plotin über Sein, Zahl und Einheit, 1995: title page (Christoph Horn)

Vernunft oder Macht?, 2006: page 272 (Christoph Horn, born 1964; Dr. phil., Prof.)

German Wikipedia, viewed December 9, 2020 (Christoph Horn; born March 6, 1964, in Pforzheim; German philosopher; since 2001, he has taught practical philosophy and ancient philosophy at the Universität Bonn)

Universität Bonn, Institut für Philosophie website, viewed December 9, 2020: link to Personen page (Prof. Dr. Christoph Horn; born 1964; obtained his doctorate at Munich in 1993; author of Plotin über Sein, Zahl und Einheit) https://www.philosophie.uni-bonn.de/de/personen/professoren/prof.-dr.-christoph-horn

Deutsche Nationalbibliothek online catalog, viewed December 10, 2020 (authorized access point: Horn, Christoph; other data in authority record: professor of philosophy at the University of Bonn; born 1964)