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Helsen WF, van Winckel J, Williams AM.Helsen WF, et al. Among authors: williams am.J Sports Sci. 2005 Jun;23(6):629-36. doi: 10.1080/02640410400021310.J Sports Sci. 2005.PMID: 16195011
Put K, Wagemans J, Spitz J, Williams AM, Helsen WF.Put K, et al. Among authors: williams am.J Sports Sci. 2016;34(2):181-9. doi: 10.1080/02640414.2015.1045926. Epub 2015 May 14.J Sports Sci. 2016.PMID: 25972094
Spitz J, Put K, Wagemans J, Williams AM, Helsen WF.Spitz J, et al. Among authors: williams am.Eur J Sport Sci. 2017 Jul;17(6):748-756. doi: 10.1080/17461391.2017.1304580. Epub 2017 Mar 28.Eur J Sport Sci. 2017.PMID: 28350233Free article.
Spitz J, Put K, Wagemans J, Williams AM, Helsen WF.Spitz J, et al. Among authors: williams am.Cogn Res Princ Implic. 2016;1(1):12. doi: 10.1186/s41235-016-0013-8. Epub 2016 Oct 31.Cogn Res Princ Implic. 2016.PMID: 28180163Free PMC article.