Hartigan, Irene A comparative review of the Katz ADL and the Barthel Index in assessing the activities of daily living of older people. [electronic resource] - International journal of older people nursing Sep 2007 - 204-12 p. digital Publication Type: Journal Article ISSN: 1748-3735 Standard No.: 10.1111/j.1748-3743.2007.00074.x doi