Raiola, G., Aliberti, S., Esposito, G., Altavilla, G., D’Isanto, T. and D’Elia, F. (2020) “How has the Practice of Physical Activity Changed During the COVID-19 Quarantine? A Preliminary Survey”, Physical Education Theory and Methodology, 20(4), pp. 242–247. doi: 10.17309/tmfv.2020.4.07.