@Article{379539,
     author = "Lyubomyr Pylypenko, Yulia Demska",
     title = "Income as an accounting evaluation of company operating efficiency",
     year =  2013,
     volume =  47,
     number =  4,
     journal =  Annales Universitatis Mariae Curie-Skłodowska. Sectio H, Oeconomia,
     pages =  s. 105-111,
    }