@misc{indiciaea14aa663137d,
  title = {[An audio-visual signaling system for List A].},
  author = {F N Vasil'ev and V P Efimov and A G Vasil'eva},
  url = {https://pubmed.ncbi.nlm.nih.gov/4170316/},
  note = {Source identifier: 4170316}
}