In txadhe xadjourxadnal Geopxadroxadfi (6, 2018) arxadticxadle Axadnalyxadsis and pxadrexadpaxadraxadtion of xadrexadmoxadte xadsenxadsing xaddaxadta fxadrom oxadpen xadsourxadces xadfor sysxadtems of exadxact xadfarxadming is xadpubxadlisxadhed. ...