TY - JOUR A1 - Keilman, N. A1 - Pham, D.Q. A1 - Hetland, A. T1 - Why population forecasts should be probabilistic ‒ illustrated by the case of Norway Y1 - 2002 DO - 10.4054/DemRes.2002.6.15 JF - Demographic Research VL - 6 IS - 15 ER -