Die Dramaturgie des dokumentarischen Theaters
“Hilzinger’s work is by far the best and methodically the most consistent on the documentary theater. The definition of the genre by Hilzinger appears as well simple as plausible: its criterion for the adherence of a piece to this form is the ‘inclusion of documentary material as an essential and non-secondary structural element.’” – Wolfgang Nehring
Hilzinger, Klaus Harro. *Die Dramaturgie des dokumentarischen Theaters*. Tübingen: Niemeyer, 1975.