MARTÍNKOVÁ, Irena. Instrumentality and values in sport [elektronický zdroj]. First English edition. Prague, [Czech Republic] : Karolinum, 2013. 1 online zdroj (143 stran). Available on Internet: <https://ebookcentral.proquest.com/lib/ujep-ebooks/detail.action?docID=1996745> ISBN 978-80-246-2307-8.