Soccer balls used for the test and their panel orientations. (a, b)
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Sungchan Hong's research works University of Tsukuba, Tsukuba
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Photographs of soccer balls. (a) Adidas Roteiro: smooth surface
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COOLL Size 4 5 Faux Leather Wearproof Football Soccer Training Ball for Children Adult
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Nature Bound Anywhere Ball - 3 Ball Sport Set Including Football, Soccer Ball, and Basketball
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Soccer balls used for the test and their panel orientations. (a, b