TY - JOUR A1 - Held, L. A1 - Riebler, A T1 - Comment on “Assessing Validity and Application Scope of the Intrinsic Estimator Approach to the Age-Period-Cohort (APC) Problem” Y1 - 2013 DO - 10.1007/s13524-013-0255-8 JF - Demography VL - 50 IS - 6 SP - 1977 EP - -1979 ER -