1. “Parameters of lightning flashes”;Berger;Electra,1975
2. “A review of positive and bipolar lightning discharges”;Rakov;Bull. Am. Meteorol. Soc.,2003
3. “Lightning: Physics and Effects”;Rakov,2003
4. “LLS Data and correlated continuous E-field measurements”;Schulz;Int. Sympos. Lightn. Prot. (SIPDA),2005
5. “First results of correlated lightning video images and electric field measurements in Austria”;Schulz;Int. Sympos. Lightn. Prot. (SIPDA),2009