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Free! Anime's Novel Predecessor High Speed! Gets Film [online]. Anime News Network, 2015-03-22 [cit. 2021-04-06]. Dostupné online. (anglicky)
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Free! -Take Your Marks- Sequel Film to Open on October 28 [online]. Anime News Network, 2017-07-04 [cit. 2021-04-06]. Dostupné online. (anglicky)
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Funimation Licenses All 4 Free! Anime Films, Screens Take Your Marks In Theaters [online]. Anime News Network, 2018-01-16 [cit. 2021-04-06]. Dostupné online. (anglicky)
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All-New Free! Anime Film Delayed From Summer 2020 [online]. Anime News Network, 2019-11-11 [cit. 2021-04-06]. Dostupné online. (anglicky)
No Grand Prizes Given for 2nd Kyoto Animation Award [online]. Anime News Network, 2015-05-12 [cit. 2021-04-06]. Dostupné online. (anglicky)
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bbc.co.uk
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crunchyroll.com
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dailydot.com
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facebook.com
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ASHCRAFT, Brian. Free!, Kyoto Animation’s popular swimming anime series, was supposed to get new info tomorrow about its upcoming Free! feature film. [online]. Kotaku, 2019-07-18 [cit. 2021-04-06]. Dostupné online. (anglicky)
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GREEN, Scott. Latest PV for "Free! -Eternal Summer-" TV Anime [online]. Crunchyroll, 2014-04-16 [cit. 2021-04-07]. Dostupné v archivu pořízeném dne 2022-05-27. (anglicky)
CD - PRODUCT - TVアニメ『Free!』公式サイト [online]. Kyoto Animation [cit. 2021-04-08]. Dostupné v archivu pořízeném dne 2014-05-31. (japonsky)
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