@misc{indiciaeced2274db755,
  title = {Simple Superconducting "Permanent" Electromagnet},
  author = {Israelson, Ulf E. and Strayer, Donald M.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920000330},
  note = {Source identifier: 19920000330}
}