Time-resolved investigation of nanosecond discharge in dense gas sustained by short and long high-voltage pulseS. Yatom, J. Z. Gleizer, D. Levko, V. Vekselman, V. Gurovich, E. Hupf, Y. Hadas and Ya. E. KrasikEPL, 96 6 (2011) 65001DOI: https://doi.org/10.1209/0295-5075/96/65001