@article{zu217668, title = {????? ? ????????? ????????????? ?. ???????? (???????????? ?-?.)}, author = {?. ?. ????? and ?. ?. ??? and ?. ?. ?????}, year = {2015}, journal = {???????? ??????}, keywords = {????????????, ????????, ???????????, ???????, ?????? ???????, ????????????????? ??????}, url = {http://eprints.zu.edu.ua/17668/} }