Bartosz Szczesniak. "MICROTOOLS BASED ON THE RELATIONAL DATA MODEL - REPRESENTATION OF ENTITIES IN A SPREADSHEET." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing, 2017, pp. 447-454. https://doi.org/10.5593/sgem2017/21/s07.057