Correlated phenomena at the sun, in the heliosphere and in geospace 31st ESLAB symposium held in Noordwijk, Natherlands, September 22-25, 1997 edited by A. Wilson - The Netherlands European Space Agency 1997 - ix, 546p. - ESA SP-415 . ISBN: 92-9092-660-0 Subjects--Topical Terms: Astronomy and astrophysicsGeologySun Universal Decimal Class. No.: 523.9:55(082.2) / ESA