@Article{406942,
     author = "Henryk Gurgul, Krzysztof Kłęk",
     title = "Analiza spektralna stóp zwrotu dla spółek z indeksu SMI",
     year =  2010,
     volume =  7,
     number =  ,
     journal =  Managerial Economics,
     pages =  s. 81-101,
    }