@article{Liefbroer1996, author = {Liefbroer, A.C. and FrÄ…tczak, E.}, title= {The Family Formation Process in Poland During the Early Years of the Socio-economic Transition: Evidence From the Polish Family and Fertility Survey 1991}, year = {1996}, journal = {Studia Demograficzne}, volume = {123-124}, pages = {39--53}, }