Roetert, E. P. (2002, 17. May). Biomechanics of the volley. Zugriff unter https://previa.uclm.es/profesorado/xaguado/ASIGNATURAS/BTD/4-Apuntes/Tema02/IO_24975_original.pdf
APA (7th ed.) CitationRoetert, E. P. Biomechanics of the volley. coachesinfo.com.
Chicago Style (17th ed.) CitationRoetert, E. P. "Biomechanics of the Volley." Coachesinfo.com .
MLA (9th ed.) CitationRoetert, E. P. "Biomechanics of the Volley." Coachesinfo.com, .
Warning: These citations may not always be 100% accurate.