TY - JOUR AU - S. Haydon BT - Proceedings of the Institution of Electrical Engineers DA - Jan-01-1970 DO - 10.1049/piee.1970.0093 PY - 1970 EP - 473 T2 - Proceedings of the Institution of Electrical Engineers TI - Critical comparison of methods for the evaluation of electron-molecule collision frequencies in crossed E and H fields UR - http://digital-library.theiet.org/content/journals/10.1049/piee.1970.0093 VL - 117 SN - 00203270 ER -