TY  - RPRT
TI  - Trapping boundary and field-line motion during geomagnetic storms.
AU  - Kaufmann, R. L.
AU  - Horng, J.-T.
AU  - Konradi, A.
PY  - 1972
UR  - https://ntrs.nasa.gov/citations/19720049292
ID  - 19720049292
ER  -