@article{202309.1857, doi = {10.20944/preprints202309.1857.v1}, url = {https://doi.org/10.20944/preprints202309.1857.v1}, year = 2023, month = {September}, publisher = {Preprints}, author = {Gerald Jarnig and Reinhold Kerbl}, title = {Sports Club Membership in Children. Gender Differences, Consequences through the COVID-19 Pandemic, and Implications for Future Promotion Strategies.}, journal = {Preprints} }