K. Hank, “Generationenbeziehungen im alternden Europa: Analysepotenziale und Befunde des Survey of Health, Ageing and Retirement in Europe: Intergenerational relations in an ageing Europe: Research potential and findings from the Survey of Health, Ageing and Retirement in Europe”, JFamRes, vol. 21, no. 1, pp. p. 86–97, Apr. 2009.