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[High-intensity interval training for young athletes].
Engel FA, Sperlich B. Engel FA, et al. Wien Med Wochenschr. 2014 Jun;164(11-12):228-38. doi: 10.1007/s10354-014-0277-x. Epub 2014 Apr 15. Wien Med Wochenschr. 2014. PMID: 24733304 Review. German.
Validity of Single-Beam Timing Lights at Different Heights.
Altmann S, Spielmann M, Engel FA, Neumann R, Ringhof S, Oriwol D, Haertel S. Altmann S, et al. J Strength Cond Res. 2017 Jul;31(7):1994-1999. doi: 10.1519/JSC.0000000000001889. J Strength Cond Res. 2017. PMID: 28277431
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