Because this is a vintage physical audio track and not a written document or article, you can track down original copies or digital transfers through music databases:
The song is called (meaning "White Beans") and was released as the B-side to their 7-inch single Nie wieder nach Spanien under the Philips label. 🎵 Song Background Travellers - WeiГџe Bohnen
You can view the physical 7" release listings on the Discogs Database . Because this is a vintage physical audio track
The text you are searching for is not a scientific or academic paper, but rather a released by the German group Die Travellers in 1972. Travellers - WeiГџe Bohnen
You can check the chart and track history on the Official German Charts Profile . Die Travellers - Weisse Bohnen - hitparade.ch