Stehlikova, BeŠ±ta, Horovcak, Pavel. "PRACTICAL USE OF DATA OBJECTS IN R PROJECT." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on INFORMATICS, GEOINFORMATICS AND REMOTE SENSING, 2013, pp. 191 - 198 pp. https://doi.org/10.5593/sgem2013/bb2.v1/s07.025