@article{Blossfeld1999, author = {Blossfeld, H.-P. and Klijzing, E. and Pohl, K. and Rohwer, G.}, title= {Why do cohabiting couples marry? An example of a causal event history approach to interdependent systems}, year = {1999}, doi = {10.1023/A:1004644703306}, journal = {Quality and Quantity}, volume = {33}, pages = {229--242}, }