TY - CHAP A1 - Kohler, H-P. A1 - Billari, F.C. A1 - Ortega, J.A. T1 - Low fertility in Europe: Causes, implications and policy options Y1 - 2006 A3 - Harris, F.R. T2 - The Baby Bust: Who Will Do the Work? who Will Pay the Taxes? CY - Maryland, USA PB - Rowman & Littlefield SP - 48 EP - -109 ER -