TY - JOUR A1 - Blossfeld, H.-P. A1 - Klijzing, E. A1 - Pohl, K. A1 - Rohwer, G. T1 - Why do cohabiting couples marry? An example of a causal event history approach to interdependent systems Y1 - 1999 DO - 10.1023/A:1004644703306 JF - Quality and Quantity VL - 33 ER -