Cluster as a wave telescope -: first results from the fluxgate magnetometer - Glassmeier,KH; Motschmann,U; Dunlop,M; Balogh,A; Acuña,MH; Carr,C; Musmann,G; Fornacon,KH; Schweda,K; Vogt,J; Georgescu,E; Buchert,S (ANNALES GEOPHYSICAE, 2001)