Galán-Arroyo, Carmen, et al. “Calidad Del sueño En Boxeadores españoles Tras La Pandemia De COVID-19 (Sleep Quality in Spanish Boxers After the COVID-19 Pandemic)”. Retos, vol. 52, Mar. 2024, pp. 457-63, https://doi.org/10.47197/retos.v52.101858.