@mastersthesis{TUW-296370, author = {Ogunbiyi, John}, title = {Reviewing the Status of National Spatial Data Infrastructure: Acase study in Southern Africa countries}, school = {Department f{\"u}r Geod{\"a}sie und Geoinformation 120-06}, year = {2021}, keywords = {SDI, NSDI, multi-view assessment framework, SDI status} }