Buzzelli, S. (2020). The "Sigma Test": A new methodology for evaluating a tennis player. Coaching and Sport Science Review, 28 (82), 3-5. Zugriff am 21.06.2021 unter https://www.itf-academy.com/content/itf_download_file.php?file_itf=https://d33so9os8hjs13.cloudfront.net/itfcontents/CSSR%2082%20ENG-v2.pdf
APA-Zitierstil (7. Ausg.)Buzzelli, S. (2020). The "Sigma Test": A new methodology for evaluating a tennis player. Coaching and Sport Science Review, 28(82), 3-5.
Chicago-Zitierstil (17. Ausg.)Buzzelli, S. "The "Sigma Test": A New Methodology for Evaluating a Tennis Player." Coaching and Sport Science Review 28, no. 82 (2020): 3-5.
MLA-Zitierstil (9. Ausg.)Buzzelli, S. "The "Sigma Test": A New Methodology for Evaluating a Tennis Player." Coaching and Sport Science Review, vol. 28, no. 82, 2020, pp. 3-5.