Kozłowski, Waldemar. 2014. “A MODEL VALUATION OF ECONOMIC AND SOCIAL EFFECTS - A CASE STUDY OF THE OLSZTYN RING ROAD CONSTRUCTION”. Acta Scientiarum Polonorum. Oeconomia 13 (2), 93-103. https://js.wne.sggw.pl/index.php/aspe/article/view/4121.