[Social inequality in health care--a plea for systematic research] von dem Knesebeck, Olaf Bauer, U Geyer, S Mielck, A 2009 - Forschungsinformationssystem des UKE
[Social inequality and health care among the aged] von dem Knesebeck, Olaf Mielck, A 2009 - Forschungsinformationssystem des UKE