@misc{indiciae076899831f18,
  title = {On Plateau's Problem with Free Boundaries.},
  author = {R Courant},
  year = {1945},
  doi = {10.1073/pnas.31.8.242},
  url = {https://pubmed.ncbi.nlm.nih.gov/16588696/},
  note = {Source identifier: 16588696}
}