The phrase " Steffi Kayser Teennutte Aus 12 " does not appear to correspond to a widely recognized public figure, specific published guide, or academic work in English or German.
Based on the components of the name and phrasing, here is the most relevant information regarding similar names and potential contexts: 1. Potential Scientific and Academic References Steffi Kayser Teennutte Aus 12
While "Steffi Kayser" does not return specific results, there are researchers with very similar names whose work involves "guides" or informative research in sensory and materials science: The phrase " Steffi Kayser Teennutte Aus 12