TY - JOUR A1 - Kravdal, Ø. T1 - Is the previously reported increase in second- and higher-order birth rates in Norway and Sweden from the mid-1970s real or a result of inadequate estimation methods? Y1 - 2002a DO - 10.4054/DemRes.2002.6.9 UR - http://www.demographic-research.org/Volumes/Vol6/9/default.htm JF - Demographic Research VL - 6 IS - 9 SP - 241 EP - -262 ER -