@misc{indiciae94b0246e2b5e,
  title = {A Multipole Expansion Method for Analyzing Lightning Field Changes},
  author = {Koshak, William J. and Krider, E. Philip and Murphy, Martin J.},
  year = {1998},
  url = {https://ntrs.nasa.gov/citations/19990076658},
  note = {Source identifier: 19990076658}
}