Latitude and local time dependence of ULF wave power at the magnetopause:: A Cluster-Double Star study - Cornilleau-Wehrlin, N; Grison, B; Attie, D; Belmont, G; Rezeau, L; Robert, P; Alleyne, HSC; Yearby, K; Lucek, E; Carr, C (JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2008)