Goldsmith, W. Julkaisussa American Swimming Magazine
Cody, M. Julkaisussa American Swimming Magazine (1997)
Hogg, J. M. Julkaisussa American Swimming Magazine (1999)
Sweetenham, B. Julkaisussa American Swimming Magazine (1999)
Sayers, M. Julkaisussa American Swimming Magazine (1997)
Botterill, C. Julkaisussa American Swimming Magazine (1998)
Wakefield, B. Julkaisussa American Swimming Magazine (1997)
Schubert, M. E. Julkaisussa American Swimming Magazine (1997)
Malone, P., Lewellyn, M., Kamberg, M. L. Julkaisussa American Swimming Magazine (1997)