%A ?. ?. ?????? %A ?. ?. ?????? %J The 3 rd International scientific and practical conference ?Achievements and prospects of modern scientific research? %T ???? ?????????? ?????????? ? ?????????? ?????? ????? ?????????? ?????? %D 2021 %K ????????? ?????????? ? ?????????? ??????, ??????? ?????? ????????? ??????????, ?????????? ??????????? ??????? ?????????, ????? ?????????? ?????? %L zu232276