@inproceedings{zu231230,
       booktitle = {????????????? ?? ???????????-??????????? ????????? ? ??????????? ?? ??????: ????, ??????????, ??????????? ????????},
           title = {Plickers ?? ?????????? ????? ????????? ????? ?????},
          author = {?. ?. ????????},
            year = {2020},
           pages = {202--204},
             url = {http://eprints.zu.edu.ua/31230/}
}