TY  - BOOK
AU  - Hruska, J., ed.Shea, M. A., ed.Smart, D. F., ed.Heckman,  G., ed.
ED  - Proceedings of a workshop 
TI  - Solar terrestrial predictions-IV: v. 3 : Geomagnetic papers, Ionospheric papers
PY  - 1993///
CY  - Boulder
PB  - NOAA
KW  - Geomagnetic IndicesGeomagnetismIonosphere
ER  -