3Bower R, Cross R. Player Sensitivity to Changes in String Tension in a tennis racket. J Sci Med Sport,2003,6(1):120- 131.
4Elliott B. The influence of tennis racquet flexibility and string tension on rebound velocity following a dynamic impact. Res Q Exerc Sport, 1982,53(4) :277 - 281.
5Hatze H. The relationship between the coefficient of restitution and energy losers in tennis rackets. J Appl Biomech, 1993,9:124 - 1420.
6Leigh, D. & Lu, W. Dynamics of the interactions between ball, strings and racket in tennis. International Journal of Sport Biomechanics, 1992,8 : 181 - 206.
7Groppd, J., Shin, I., Thomas, J. & Welk, G. The effects of string type and tension on impact in midsized and oversized tennis rackets. International Journal of Sport Biomechanics, 1987, 3 : 40 - 46.
8Brody, H. Physics of the tennis racket II: The 'sweet spot'. American Journal of Physics, 1981,49(9) : 816 - 819.
9Brody, H., Cross, R. and Lindsey, C. The Physics and Technology of Tennis. United States Racquet Stringers Association, California, USA,2002.
10Goodwill, S.R. and Haake, S.J. Ball spin generation for oblique impacts with a tennis racket. Society for Experimental Mechanics, 2004,44(2) : 195 - 206.
