@misc{indiciae19923d69c136,
  title = {Gradient and curvature drifts in magnetic fields with arbitrary spatial variation},
  author = {Isenberg, P. A. and Jokipii, J. R.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19800032722},
  note = {Source identifier: 19800032722}
}