TY - JOUR AU - M. Hidalgo BT - The Astrophysical Journal DA - Jan-09-1968 DO - 10.1086/149724 PY - 1968 EP - 981 T2 - The Astrophysical Journal TI - Photo-Ionization Cross-Sections for Ions of Carbon, Nitrogen, Oxygen, and Neon UR - http://articles.adsabs.harvard.edu/full/1968ApJ...153..981H VL - 153 SN - 0004-637X ER -