24 citations as recorded by crossref.

1. Two-Dimensional Correlation Analysis of Periodicity in Noisy Series: Case of VLF Signal Amplitude Variations in the Time Vicinity of an Earthquake A. Kovačević et al. https://doi.org/10.3390/math10224278
2. Earthquake forewarning — A multidisciplinary challenge from the ground up to space F. Freund https://doi.org/10.2478/s11600-013-0130-4
3. Variations in the parameters of thunderstorm electromagnetic signals on paths over earthquake regions V. Mullayarov et al. https://doi.org/10.1134/S0016793211060120
4. Electric field strength analysis of 216 and 270 kHz broadcast signals recorded during 9 years P. Biagi et al. https://doi.org/10.1029/2005RS003296
5. Investigation of Precursors in VLF Subionospheric Signals Related to Strong Earthquakes (M > 7) in Western China and Possible Explanations S. Zhao et al. https://doi.org/10.3390/rs12213563
6. VLF Signal Noise Reduction during Intense Seismic Activity: First Study of Wave Excitations and Attenuations in the VLF Signal Amplitude A. Nina https://doi.org/10.3390/rs16081330
7. Variations of VLF radio signals and atmospherics during the deep earthquake with M = 8.2 occurred on 24 May 2013 near Kamchatka peninsula V. Mullayarov et al. https://doi.org/10.4236/ns.2014.63019
8. Variation in the VLF signal noise amplitude during the period of intense seismic activity in Central Italy from 25 October to 3 November 2016 A. Nina et al. https://doi.org/10.3389/fenvs.2022.1005575
9. Variations in a LF radio signal on the occasion of the recent seismic and volcanic activity in Southern Italy P. Biagi et al. https://doi.org/10.1016/j.pce.2003.10.005
10. Case study on low-frequency time-code signal during the 10–15 November 2025 geomagnetic storm: observations and analysis X. Wang et al. https://doi.org/10.3389/fspas.2026.1844570
11. Quantitative effects of cyclotron resonance on the coupling of ULF with VLF and langmuir waves A. Shah et al. https://doi.org/10.1080/17455030.2021.1937752
12. Remote monitoring of electromagnetic signals and seismic events using smart mobile devices P. Georgiadis et al. https://doi.org/10.1016/j.cageo.2008.07.008
13. Generic precursors to coastal earthquakes: Inferences from Denali fault earthquake R. Singh et al. https://doi.org/10.1016/j.tecto.2006.05.040
14. Pre-earthquake signals: Underlying physical processes F. Freund https://doi.org/10.1016/j.jseaes.2010.03.009
15. Variations in thunderstorm VLF emissions propagating over epicenters of earthquakes V. Mullayarov et al. https://doi.org/10.1016/j.jastp.2007.06.001
16. Influences of Solar Cycles on Earthquakes M. Tavares & A. Azevedo https://doi.org/10.4236/ns.2011.36060
17. Investigation on the Impact of the 2022 Luding M6.8 Earthquake on Regional Low-Frequency Time Code Signals in Northern China F. Zhao et al. https://doi.org/10.3390/atmos15121419
18. The INFREP Network: Present Situation and Recent Results P. Biagi et al. https://doi.org/10.4236/ojer.2019.82007
19. Entropy-statistical approach to phase-locking detection of oscillations P. Boriskov et al. https://doi.org/10.1631/FITEE.2500402
20. Researching of quasiperiodic variations in the amplitude of VLF electromagnetic signals from lightning discharges passing over strong earthquakes V. Argunov et al. https://doi.org/10.1051/e3sconf/201912703005
21. Variation in natural short-period ionospheric noise, and acoustic and gravity waves revealed by the amplitude analysis of a VLF radio signal on the occasion of the Kraljevo earthquake (Mw = 5.4) A. Nina et al. https://doi.org/10.1016/j.scitotenv.2019.136406
22. Reception conditions of low frequency (LF) transmitter signals onboard DEMETER micro-satellite M. Boudjada et al. https://doi.org/10.1016/j.pce.2016.07.006
23. Variation of electron loss rate due to recombination processes in the upper ionospheric D-region plasma after a solar X-ray flare: a study case A. Nina & V. Čadež https://doi.org/10.1140/epjd/s10053-021-00115-6
24. A statistical normalization framework for detecting geophysical signatures in long-term VLF ionospheric data A. Borgazzi et al. https://doi.org/10.1016/j.jastp.2026.106928