@article{zu219138,
           title = {The concept of the binary tree},
          author = {T. V. Shmatyuk},
       publisher = {???-?? ??? ??. ?. ??????},
            year = {2015},
           pages = {144--145},
         journal = {????????????? ??????? ?????? ????????? ???????: ????????? ??????????? ???????-?????????? ???????????? ??????????? ??? ????????? ???????? ??????????????: ???????, 15 ?????? 2015 ?.},
             url = {http://eprints.zu.edu.ua/19138/}
}