ONDRÁŠKOVÁ, Adriena, Sebastián ŠEVČÍK, Pavel KOSTECKÝ, Juraj TÓTH, and Róbert KYSEL. 2010. “On the Relation Between the Red Sprites and the Transients in the ELF Band”. Contributions to Geophysics and Geodesy 40 (2), 149-57. https://doi.org/10.2478/v10126-010-0006-4.