SPEAR far UV spectral imaging of highly ionized emission from the North Galactic Pole region B. Y. Welsh, J. Edelstein, E. J. Korpela, J. Kregenow, M. Sirk, K.-W. Min, J. W. Park, K. Ryu, H. Jin, I.-S. Yuk and J.-H. Park A&A, 472 2 (2007) 509-517 Published online: 06 June 2007 DOI: 10.1051/0004-6361:20077685