Cervantes Hernández, Natanael, et al. “Integrative Flexibility Training to Improve Joint Mobility and Range of Movement in Jazz Dancing Girls”. Sportis. Scientific Technical Journal of School Sport, Physical Education and Psychomotricity, vol. 7, no. 3, Aug. 2021, pp. 425-47, doi:10.17979/sportis.2021.7.3.8572.