@article{Kaiser-Müller_2018, title={Safer Internet Day 2019: 5. Februar 2019}, volume={56}, url={https://journals.univie.ac.at/index.php/mp/article/view/mi1296}, number={4}, journal={Medienimpulse}, author={Kaiser-Müller, Katharina}, year={2018}, month={Dez.} }