%A ?. ?. ?????? %A ?. ?. ??????????? %J 24 Hours of Participation %T ?????????? ?? ??????????? ??????? ? ?????? ??? ??????? ?????? %X IV International Scientific and Practical Conference ?MODERN SCIENCE: PROBLEMS AND INNOVATIONS? 24 Hours of Participation STOCKHOLM 28-30 June 2020 %D 2020 %K ?????? ? ?????, ????????????, ????????, ??????? ????????? %L zu231728