@phdthesis{TUW-295110, author = {Bachmann, Sabine}, title = {VLBI-based Combination Strategies for Global Geodetic Reference Frames}, school = {Department f{\"u}r Geod{\"a}sie und Geoinformation / H{\"o}here Geod{\"a}sie}, year = {2020}, url = {https://repositum.tuwien.at/handle/20.500.12708/16609} }