@article{TUW-281042, author = {Nie{\ss}ner, Anton and Edelmaier, Robert and B{\"o}hm, Johannes}, title = {Austrian contributions to the realization of time systems}, journal = {{\"O}sterreichische Zeitschrift f{\"u}r Vermessung und Geoinformation (VGI)}, year = {2019}, volume = {107}, number = {2}, pages = {74--77}, keywords = {Atomic Time, Universal Time, Earth Rotation} }