1. Unknown source
These are probably excerpts from an interview by Renato Parascandolo for a RAI (Italian national public broadcasting company) series – Rome 1993, time: 44:04, language: English
2. Philosophie Heute: Paul Feyerabend – Lieber Himmel – was ist ein Mensch?
Interview by Rüdiger Safranski for a ARD 1 – das Erste (German national public broadcasting company) series – Rome 1993, time: 44:01, language: German
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