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Schärli, Andrea Melanie; Keller, Melanie; Lorenzetti, Silvio; Murer, Kurt; van de Langenberg, Rolf (2013). Balancing on a slackline: 8-year-olds vs. adults. Frontiers in psychology, 4, p. 208. Frontiers Research Foundation 10.3389/fpsyg.2013.00208