APA

Buttery A. K., Du Y., Busch M. A., Fuchs J., Gaertner B., Knopf H. & Scheidt-Nave C. (20170622). Changes in physical functioning among men and women aged 50-79 years in Germany: an analysis of National Health Interview and Examination Surveys, 1997-1999 and 2008-2011. : BMC geriatrics.

Chicago

Buttery A K, Du Y, Busch M A, Fuchs J, Gaertner B, Knopf H and Scheidt-Nave C. 20170622. Changes in physical functioning among men and women aged 50-79 years in Germany: an analysis of National Health Interview and Examination Surveys, 1997-1999 and 2008-2011. : BMC geriatrics.

Harvard

Buttery A. K., Du Y., Busch M. A., Fuchs J., Gaertner B., Knopf H. and Scheidt-Nave C. (20170622). Changes in physical functioning among men and women aged 50-79 years in Germany: an analysis of National Health Interview and Examination Surveys, 1997-1999 and 2008-2011. : BMC geriatrics.

MLA

Buttery A K, Du Y, Busch M A, Fuchs J, Gaertner B, Knopf H and Scheidt-Nave C. Changes in physical functioning among men and women aged 50-79 years in Germany: an analysis of National Health Interview and Examination Surveys, 1997-1999 and 2008-2011. : BMC geriatrics. 20170622.