Global control of merging by the interplanetary magnetic field: Cluster observations of dawnside flank magnetopause reconnection - art. no. A12203 - Eriksson,S; Elkington,SR; Phan,TD; Petrinec,SM; Rème,H; Dunlop,MW; Wiltberger,M; Balogh,A; Ergun,RE; André,M (JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2004)