TY - CONF AU - J. Shull BT - Electron impact ionization N1 - JILA Pub. 2639 PB - Springer-Verlag PY - 1985 EP - 327 T2 - Electron impact ionization TI - Collisional Ionization. Astrophysical and Fusion Applications SN - 0387817786, 9780387817781 ER -