Stanislawska, Iwona, Anna Belehaki, Norbert Jakowski, Bruno Zolesi, Tamara L. Gulyaeva, Ljiljana R. Cander, Bodo W. Reinisch, et al. 2009. “COST 296 Scientific Results Designed for Operational Use”. Annals of Geophysics 52 (3-4): 423-35. https://doi.org/10.4401/ag-4598.