%0 Literatur %A Ker, J.A. %E Ker, J.A. %E Schultz, C.M. %D 1996 %G eng %@ 0172-4622 %@ 1439-3964 %T Respiratory muscle fatigue after an ultra-marathon measured as inspiratory task failure %J International journal of sports medicine %V 17 %N 7 %P S. 493-496 %U https://dx.doi.org/10.1055/s-2007-972884