TY  - RPRT
TI  - A time-dependent model of polar cap arcs
AU  - Zhu, L.
AU  - Sojka, J. J.
AU  - Schunk, R. W.
AU  - Crain, D. J.
PY  - 1993
UR  - https://ntrs.nasa.gov/citations/19930049323
ID  - 19930049323
ER  -