with Bonte, P. , Sterckx, S. , Schotsmans, P. , 2013, Introduction: human nature as a promising concept to make sense of the spirit of sport, in J. Tolleneer, S. Sterckx & P. Bonte (eds.), Athleticenhancement, human nature and ethics, Dordrecht, Springer, pp. 1-18.
with Schotsmans, P. , 2013, Self, other, play, display and humanity: development of a five-level model for the analysis of ethical arguments in the athletic enhancement debate, in J. Tolleneer, S. Sterckx & P. Bonte (eds.), Athleticenhancement, human nature and ethics, Dordrecht, Springer, pp. 21-43.
with Sterckx, S. , Bonte, P. (eds) , 2013a, Athleticenhancement, human nature and ethics: threats and opportunities of doping technologies, Springer, Dordrecht.