@misc{indiciaecf4d6051950a,
  title = {Lightning return stroke models},
  author = {Lin, Y. T. and Uman, M. A. and Standler, R. B.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800044126},
  note = {Source identifier: 19800044126}
}