Hauer, K.Lord, SRLamb, SELindemann, U.Schwenk, R.Heyl, R.Coll, L.Aminian, K.Becker, C.2011-03-192011-03-192011-03-19201110.1123/japa.19.4.347https://infoscience.epfl.ch/handle/20.500.14299/65468Physical activityAssessment of physical activity in older people with and without cognitive impairmenttext::journal::journal article::research article