@misc{indiciaeb9596fdacb27,
  title = {Green's function and propagator for the one-dimensional delta -function potential.},
  author = {SM Blinder},
  year = {1988},
  doi = {10.1103/physreva.37.973},
  url = {https://pubmed.ncbi.nlm.nih.gov/9899742/},
  note = {Source identifier: 9899742}
}