@misc{indiciaea9d0fecbca85,
  title = {[Audio-visual information transmission--a solution of teaching problems?].},
  author = {E Sprenger and N Böhm and W Sandritter},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/4185709/},
  note = {Source identifier: 4185709}
}