APA Citation

Romer, T., Rüst, C. A., Zingg, M. A., Rosemann, T., & Knechtle, B. (2014). Age and ultra-marathon performance - 50 to 1,000 km distances from 1969 – 2012. Springer International Publishing.

Chicago Style Citation

Romer, Tobias, Christoph Alexander Rüst, Matthias Alexander Zingg, Thomas Rosemann, and Beat Knechtle. Age and Ultra-marathon Performance - 50 to 1,000 km Distances From 1969 €� 2012. Springer International Publishing, 2014.

MLA Citation

Romer, Tobias, et al. Age and Ultra-marathon Performance - 50 to 1,000 km Distances From 1969 €� 2012. Springer International Publishing, 2014.

Warning: These citations may not always be 100% accurate.