Negative phases at south America stations during 0magnetic storms.

Geahča maid

• Evolution of total electron content and slab thickness at Tucumán, Argentina during some geomagnetic storms
  Dahkki: Gustavo A. Mansilla, et al.
  Almmustuhtton: (1997)
• GPS-derived total electron content response for the Bastille Day magnetic storm of 2000 at a low mid-latitude station
  Dahkki: E. A. Araujo-Pradere
  Almmustuhtton: (2005)
• Time variation of total electron content over Tucumán, Argentina
  Dahkki: M. Mosert, et al.
  Almmustuhtton: (2004)
• Total electron content variations in the ionosphere before the Colima, Mexico, earthquake of 21 January 2003
  Dahkki: G. Bisiacchi-Giraldi, et al.
  Almmustuhtton: (2005)
• Negative phases at south America stations during 0magnetic storms.
  Almmustuhtton: (2000)