@article{zu230840,
           title = {Forming the ?alculating and ?omputing ?ompetence in Senior  Preschool Children},
          author = {Nadiia Trofymchuk and ?. ?. ??????},
            year = {2020},
         journal = {?????? ? ???????? ???????? ????????? ???},
             url = {http://eprints.zu.edu.ua/30840/}
}