@unpublished{zu211621,
           title = {??????????? ?????? ??????????? ?? ???????????? ??????????? ??????? ???????? E-7},
          author = {?. ?. ???????? and ?. ?. ????????},
       publisher = {??? ??. ?.??????},
            year = {2014},
             url = {http://eprints.zu.edu.ua/11621/},
        abstract = {???????????? ??????}
}