%A ?. ?. ????????? %A ?. ?. ??????? %A ?. ?. ??????? %A ?. ?. ???????? %A ?. ?. ?????? %J Achievements and prospects of modern scientific research: The 3 rd International scientific and practical conference %T ?????????-??????????? ?????????? ??? ??? ??????????? ?????????? ????????? ??????? %D 2021 %K ?????????? ????????? ???????, ?????????-??????????? ?????????? %L zu232277