@phdthesis{TUW-278276, author = {Mayer, David}, title = {VLBI Celestial Reference Frames and Assessment with Gaia}, school = {Department f{\"u}r Geod{\"a}sie und Geoinformation (H{\"o}here Geod{\"a}sie)}, year = {2019}, url = {https://repositum.tuwien.ac.at/urn:nbn:at:at-ubtuw:1-121147} }