Veiga Fernandez, Santiago and Cala Mejías, Antonio and González Frutos, Pablo and Navarro Cabello, Enrique (2013). Kinematical Comparison of the 200 m Backstroke Turns between National and Regional Level Swimmers. "Journal of Sports Science And Medicine", v. 12 (n. 4); pp. 730-737. ISSN 1303-2968.