ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (29. : 2021 : Peking; Online) Bezüge im Wissensnetz Veranstaltungsort (1) GND Peking Homepage (1) GND sigspatial2021.sigspatial.org Veranstalter oder Gastgeber (1) GND Association for Computing Machinery. Special Interest Group on Spatial Information Thema (1) GND Geoinformationssystem