TY  - RPRT
TI  - Open magnetic structures on the sun
AU  - Levine, R. H.
AU  - Altschuler, M. D.
AU  - Harvey, J. W.
AU  - Jackson, B. V.
PY  - 1977
UR  - https://ntrs.nasa.gov/citations/19770056576
ID  - 19770056576
ER  -