TY - JOUR A1 - Liefbroer, A.C. A1 - FrÄ…tczak, E. T1 - The Family Formation Process in Poland During the Early Years of the Socio-economic Transition: Evidence From the Polish Family and Fertility Survey 1991 Y1 - 1996 JF - Studia Demograficzne VL - 123-124 SP - 39 EP - -53 ER -