TY  - RPRT
TI  - A model of interplanetary and coronal magnetic fields.
AU  - Ness, N. F.
AU  - Schatten, K. H.
AU  - Wilcox, J. M.
PY  - 1969
UR  - https://ntrs.nasa.gov/citations/19690046440
ID  - 19690046440
ER  -