TY - JOUR A1 - Keilman, N. A1 - Pham, D. Q. T1 - Time Series Based Errors and Empirical Errors in Fertility Forecasts in the Nordic Countries Y1 - 2004 DO - 10.2307/1403839 JF - International Statistical Review/Revue Internationale de Statistique VL - 72 IS - 1 SP - 5 EP - -18 ER -