TY - JOUR A1 - Kohler, Hans-Peter A1 - Billari, Francesco C. A1 - Ortega, José Antonio T1 - The Emergence of Lowest-Low Fertility in Europe During the 1990s Y1 - 2002 DO - 10.1111/j.1728-4457.2002.00641.x JF - Population and Development Review VL - 28 IS - 4 ER -