References
- Liu , King Y. 1983 . Mechanical Analysis of Racket and Ball During Impact . Medicine & Science in Sports and Exercise , 15 : 388 – 392 .
- Missavage , R. , Baker , J. A. W. and Putnam , C. A. 1984 . Theoretical Modeling of Grip Firmness During Ball-Racket Impact . Research Quarterly for Exercise and Sport , 55 : 254 – 260 .