TY - GEN A1 - Perelli-Harris, Brienna A1 - Sigle-Rushton, Wendy A1 - Kreyenfeld, Michaela A1 - Lappegard, Trude A1 - Berghammer, Caroline A1 - Keizer, Renske T1 - The educational gradient of nonmarital childbearing in Europe: Emergence of a pattern of disadvantage? Y1 - 2010 ER -