TY - JOUR AU - Kim, Y AU - Stone, Philip C2 - Journal of Physics B-Atomic Molecular and Optical Physics DA - 2007-01-01 00:01:00 LA - en M1 - 40 PB - Journal of Physics B-Atomic Molecular and Optical Physics PY - 2007 TI - Ionization of silicon, germanium, tin and lead by electron impact ER -