TY - CHAP A1 - Scherbov, S. A1 - Sanderson, W.C. T1 - New approaches to the conceptualization and measurement of age and ageing Y1 - 2020 DO - 10.1007/978-3-030-42472-5_12 A3 - Mazzuco, S. A3 - Keilman, N. T2 - Developments in demographic forecasting CY - Cham PB - Springer International Publishing ER -