@article{zu223235,
           title = {?????????? ??????? ??????? ? ????????? ??????????? ? ???????? ??????-????????????? ???????},
          author = {?. ?. ??????},
       publisher = {?????},
            year = {1989},
           pages = {69--75},
         journal = {???????????? ????????????},
             url = {http://eprints.zu.edu.ua/23235/}
}