Relations between texts (intertextuality) are one of the pet themes of recent (linguistic and literary) research. But they are more frequently asserted than demonstrated. The study develops the methodological equipment required to test such theses. This is then used to examine texts by Ingeborg Bachmann (1926-1973), from her earliest poems to her late prose. The analysis is able to correct some cherished 'myths' in the recent research on Bachmann, notably the relationship between Bachmann and Celan, Bachmann's so-called 'musical poetology', and the influence of Adorno, Heidegger, and others.