@misc{indiciaed440de000979,
  title = {Pumping potential wells},
  author = {Hershkowitz, N. and Forest, C. and Wang, E. Y. and Intrator, T.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870013883},
  note = {Source identifier: 19870013883}
}