1. and 1984 ‘The charging of ice by differences in contact potential’. Pp. 202–203 in VIIth International conference on atmospheric electricity, American Meteorological Society, Boston
2. Early electrification and precipitation development in a small, isolated Montana cumulonimbus
3. Charge separation in a Florida thunderstorm
4. 1984b ‘Model of charge separation in a Florida thunderstorm’. Pp. 178–181 in Vllth International conference on atmospheric electricity, American Meteorological Society, Boston
5. TRIP illumines lightning