TY - RPRT TI - On the Relationship between Solar Wind Speed, Earthward-Directed Coronal Mass Ejections, Geomagnetic Activity, and the Sunspot Cycle Using 12-Month Moving Averages AU - Wilson, Robert M. AU - Hathaway, David H. PY - 2008 UR - https://ntrs.nasa.gov/citations/20080030106 ID - 20080030106 ER -