Hirano, Y. Julkaisussa The Engineering of Sport 5, Volume 2 (2004)
Nachbauer, W., Rainer, F., Schindelwig, K., Kaps, P. Julkaisussa The Engineering of Sport 5, Volume 1 (2004)
Scott, N. W., Yoneyama, T., Kagawa, H., Takahashi, M. Julkaisussa The Engineering of Sport 5, Volume 1 (2004)