@misc{Holzer_Jerzy_Social_1998, author={Holzer, Jerzy and Kotowska, Irena}, copyright={Creative Commons Attribution BY 4.0 license}, journal={Książka = Book}, address={Warszawa}, howpublished={online}, year={1998}, publisher={Instytut Badań Systemowych. Polska Akademia Nauk}, publisher={Systems Research Institute. Polish Academy of Sciences}, language={eng}, type={Text}, title={Social security reform : proceedings of the International Workshop Warsaw on 23-24 September, 1997 * The outline of the polish case * Demographic background for the social security reform}, URL={http://rcin.org.pl/ibsys/Content/206619/PDF/KS-1998-01-R03P02.pdf}, }