Zawojska, A. and Daniłowska, A. 1999. Proceedings from the Participation in the V Congress of the Association of Agricultural and Agribusiness Economists "Agribusiness in the Countries of Central and Eastern Europe in a View of Integration with the European Union". Zeszyty Naukowe SGGW - Ekonomika i Organizacja Gospodarki Żywnościowej. 36 (Mar. 1999), 125–135. DOI:https://doi.org/10.22630/EIOGZ.1999.36.10.