Leirdal, S, Sandbakk, O & Ettema, G. (2013). Effects of frequency on gross efficiency and performance in roller ski skating. Scandinavian Journal of Medicine & Science in Sports, 23 (3), 295-302. doi: 10.1111/j.1600-0838.2011.01379.x
APA (7th ed.) CitationLeirdal, S., Sandbakk, O., & Ettema, G. (2013). Effects of frequency on gross efficiency and performance in roller ski skating. Scandinavian Journal of Medicine & Science in Sports, 23(3), 295-302.
Chicago Style (17th ed.) CitationLeirdal, S., O. Sandbakk, and G. Ettema. "Effects of Frequency on Gross Efficiency and Performance in Roller Ski Skating." Scandinavian Journal of Medicine & Science in Sports 23, no. 3 (2013): 295-302.
MLA (9th ed.) CitationLeirdal, S., et al. "Effects of Frequency on Gross Efficiency and Performance in Roller Ski Skating." Scandinavian Journal of Medicine & Science in Sports, vol. 23, no. 3, 2013, pp. 295-302.