5 citations as recorded by crossref.

1. Dilatation structures and ULF electromagnetic quasi-oscillatory variations in the course of preparation of a strong seismic event L. Sobisevich & A. Sobisevich https://doi.org/10.2205/2010NZ000045
2. Gradients and phase velocities of ULF geomagnetic disturbances used to determine the source of an impending strong earthquake V. Ismaguilov et al. https://doi.org/10.1134/S0016793206030157
3. On the Possibility of Detection of Electromagnetic Earthquake Precursors with Levels Below the Regular Background Noise S. Polyakov et al. https://doi.org/10.1007/s11141-014-9532-7
4. The European VLF/LF radio network: current status P. Biagi et al. https://doi.org/10.1007/s40328-014-0089-x
5. First experience on spatial discrimination of large-scale natural elf interference on the example of two-point measurements of the magnetic field of an artificial ionospheric source S. Polyakov et al. https://doi.org/10.1007/s11141-006-0126-x