@misc{indiciae92bf5a317b2d,
  title = {[Ludwig's technic. 1. Pre-functional impression].},
  author = {F Grünewald and H Ludwigs and W Markiewicz},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2701597/},
  note = {Source identifier: 2701597}
}