TY  - RPRT
TI  - Spring-fall asymmetry of substorm strength, geomagnetic activity and solar wind: Implications for semiannual variation and solar hemispheric asymmetry
AU  - K. Mursula
AU  - E. Tanskanen
AU  - J.J. Love
PY  - 2011
DO  - 10.1029/2011gl046751
UR  - https://pubs.usgs.gov/publication/70034109
ID  - 70034109
ER  -