Geomagnetic data 1987 IAGA indices aa, am, Kp, Dst, AE : rapid variations edited by Michel Menvielle and Annick Berthelier - France International Service for Geomagnetic Indices 1993 - 236p. - IAGA Bulletin; No. 32r .


Iaga Bulletin No.32rIaga Bulletin-data

550.38 / IAGA