TY - JOUR AU - Yong, AU - Rudd, M C2 - Journal of Physics B-Atomic Molecular and Optical Physics DA - 2000-05-01 LA - en M1 - 33 PB - Journal of Physics B-Atomic Molecular and Optical Physics PY - 2000 TI - Comments on 'Electron Impact Ionization of Methane' ER -