“Comparison of the Polynomial Regression Zonal Estimation Comparison of the Inverse Distance Weighting and Ordinary Kriging Linear Interpolator: Case Study of Porosity Estimation in Neogene Sandstone Reservoirs in the Sava Depression, Croatia”. 2025. Rudarsko-geološko-Naftni Zbornik 40 (4): 185-96. https://doi.org/10.17794/rgn.2025.4.14.