Grivas Γ., Soulas Δ., Manou Β., Voutselas Β., and Papanikolaou Ζ. “Strength Training in Middle and Long Distance Running”. Inquiries in Physical Education and Sport, vol. 7, no. 2, Sept. 2009, pp. 244-53, doi:10.26253/heal.uth.ojs.ispe.2009.1326.