Media type: E-Article Title: Objectively determined physical activity levels of primary school children in south-west Germany Contributor: Kettner, Sarah; Kobel, Susanne; Fischbach, Nanette; Drenowatz, Clemens; Dreyhaupt, Jens; Wirt, Tamara; Koch, Benjamin; Steinacker, Jürgen Michael Published: Springer Science and Business Media LLC, 2013 Published in: BMC Public Health, 13 (2013) 1 Language: English DOI: 10.1186/1471-2458-13-895 ISSN: 1471-2458 Origination: Footnote: Access State: Open Access