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Balancing on a Slackline: 8-Year-Olds vs. Adults: Andrea Melanie Schärli, Melanie Keller, Silvio L... http://t.co/rV6uIc1krB #psychology
Balancing on a Slackline: 8-Year-Olds vs. Adults: Andrea Melanie Schärli, Melanie Keller, Silvio L... http://t.co/rV6uIc1krB #psychology