@Article{467587,
     author = "Mirosław Kowalewski, Jolanta Soroko",
     title = "Ex Ante and Ex Post Economic Efficiency of Road Projects Based on the Example of Ostróda Bypass",
     year =  2009,
     volume =  4,
     number =  1,
     journal =  Olsztyn Economic Journal,
     pages =  s. 83-94,
    }