Tavra, Marina, Vlado Cetl, and Tea Duplančić Leder. 2014. “A FRAMEWORK FOR EVALUATION OF MARINE SPATIAL DATA GEOPORTALS USING CASE STUDIES”. GeoScience Engineering 60 (4):Unpublished (was 9-18). https://geoscience.cz/ojs/index.php/GSE/article/view/59.