PT Journal AU Varouchakis, EA Theodoridou, PG Karatzas, GP TI Decision-making tool for groundwater level spatial distribution and risk assessment using geostatistics in R SO J. Hazard. Toxic Radioact. Waste PY 2020 BP 04019031 VL 24 (1) DI 10.1061/(ASCE)HZ.2153-5515.0000464 ER