@misc{Owsinski_Jan_System_1982, author={Owsinski, Jan}, copyright={Creative Commons Attribution BY 4.0 license}, address={Warszawa}, journal={Książka = Book}, howpublished={online}, year={1982}, publisher={Instytut Badań Systemowych. Polska Akademia Nauk}, publisher={Systems Research Institute. Polish Academy of Sciences}, language={eng}, title={System analysis and rural/spatial development : Risk analysis}, type={Text}, URL={http://www.rcin.org.pl/Content/218821/PDF/KS-1982-01-R04.pdf}, }