TY - JOUR AU - Joseph Collins AU - J. Shull AU - M. Giroux BT - The Astrophysical Journal DA - Oct-04-2004 DO - 10.1086/382269 PY - 2004 SP - 216 EP - 229 T2 - The Astrophysical Journal TI - Highly Ionized High-Velocity Clouds toward PKS 2155-304 and Markarian 509 UR - http://stacks.iop.org/0004-637X/605/i=1/a=216 VL - 605 SN - 0004-637X ER -