@misc{indiciae9ffa3d0e0075,
  title = {ON THE OPERATIONAL CALCULUS WITH DIFFERENTIABLE FUNCTIONS.},
  author = {L Nachbin},
  year = {1958},
  doi = {10.1073/pnas.44.7.698},
  url = {https://pubmed.ncbi.nlm.nih.gov/16590262/},
  note = {Source identifier: 16590262}
}