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Fisher, K. J.
Healthy aging through active leisure [Текст] : Design and methods of shape - a randomized controlled trial of a neighborhood-based walking project / K. J. Fisher, A. M. Pickering, F. Li
// World Leisure Journal. – Warszawa : Polico-Druk, 2002. – Vol. 44, № 1. – C. 19-28.
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