Pięta, Paweł, and Iwona Pomianek. 2008. “FACTORS INFLUENCING ON SETTING UP THE ECONOMIC ACTIVITY ON RURAL AREAS IN SELECTED COMMUNES OF OLSZTYNSKI SUBREGION”. Acta Scientiarum Polonorum. Oeconomia 7 (3), 89-97. https://js.wne.sggw.pl/index.php/aspe/article/view/3790.