Standardize geodata management in Vietnam – An urgent need - Quang Duong, Dinh; Jolk, Christian; Stolpe, Harro; Greassidis, Sandra; Führer, Nils; Zindler, Björn; Fink, Manfred; Vo, Duc Phuoc (Proceedings, International Symposium on GeoInformatics for Spatial - Infrastructure Development In Earth and Allied Sciences)