TY - JOUR A1 - Gans, D. A1 - Silverstein, M. T1 - Norms of filial responsibility for aging parents across time and generations Y1 - 2006 DO - 10.1111/j.1741-3737.2006.00307.x JF - Journal of Marriage and Family VL - 68 IS - 4 SP - 961 EP - -976 ER -