1. Read Initiative to Select Label and Protect the World Most Important Karst Springs
2. Read Bulgarian Publ art – 5_Benderev-IGH-2022
3. Read Polish Paper MIKAS Barczyk_et al – Prezglad_Geol_vol_72_2024
4. Read Bulgarian Paper MIKAS Benderev_et al REV-BGS_2023-2
5. Read Bosnia and Herzegovina Geol Congress 2024 Plenary MIKAS ZStev