@article{zu222121,
           title = {Use of silica adsorbent in metal cation determination},
          author = {J. Kravchenko},
       publisher = {???????: ??-? ????????? ?.?.},
            year = {2016},
           pages = {75--76},
         journal = {??????????? ???????? ?????????? ???????????  ?????? ??????????? ? ???????? ?????: ??????? ?????????? ??????????? ???????-?????????? ??????????? ??? ????????? ???????? ??????????????: ???????, 13 ?????? 2016 ?./ ?? ???. ???. ?.?. ?????????},
             url = {http://eprints.zu.edu.ua/22121/}
}