DVS Edition Citation

Helsen, W. F. & Bultynck, J. B. (2004). Physical and perceptual-cognitive demands of top-class refereeing in association football. Journal of Sports Sciences, 22 (2), 179-189. doi: 10.1080/02640410310001641502

APA (7th ed.) Citation

Helsen, W. F., & Bultynck, J. B. (2004). Physical and perceptual-cognitive demands of top-class refereeing in association football. Journal of Sports Sciences, 22(2), 179-189.

Chicago Style (17th ed.) Citation

Helsen, W. F., and J. B. Bultynck. "Physical and Perceptual-cognitive Demands of Top-class Refereeing in Association Football." Journal of Sports Sciences 22, no. 2 (2004): 179-189.

MLA (9th ed.) Citation

Helsen, W. F., and J. B. Bultynck. "Physical and Perceptual-cognitive Demands of Top-class Refereeing in Association Football." Journal of Sports Sciences, vol. 22, no. 2, 2004, pp. 179-189.