TY  - RPRT
TI  - Active regions and the interplanetary magnetic field.
AU  - Ness, N. F.
AU  - Schatten, K. H.
AU  - Wilcox, J. M.
PY  - 1968
UR  - https://ntrs.nasa.gov/citations/19680054494
ID  - 19680054494
ER  -