RT Journal T1 A Topological Process Model of Trajectories-regions Based on Critical Points A1 WU Tao, XIANG Longgang, GONG Jianya PB Acta Geodaetica et Cartographica Sinica FD 2015-11-20 YR 2015 JF Acta Geodaetica et Cartographica Sinica JO Acta Geodaetica et Cartographica Sinica VO 44 IS 11 SP 1277 DO 10.11947/j.AGCS.2015.20140261 K1 topological process;intersection types;semantic relations;linkage of intersection LK {http://xb.chinasmp.com/EN/article/article_6647.shtml}