?? ?????????? ???????? ?????
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???? ?????????? ???????
????? ????? ??
???? MIT-??????? ?????? ????? ???????
. ????? ?????? ???? ?????? ?????? ????????? ????????? ???????? ??? ????? ?????? ????????? ??????? ???????? ?????? ?????? ?????? ????????? ????? ?????
[2]
??? ?????? ?????? ???
????? ???? ?? ????????
??? 2005
[3]
?
?????? ??????? ?????
??? 2007?
????? ??????? ??????
??? 2014.
[4]
??? ?? ??? ?????????? ??????
????? ?????? ??????? ?????????
??? 2006 ????????? ?? ????? ???????? ???? ?????? ?? ?????????? ????? ???????? ??????. ???? ?????? ??
????? ??????
????? ??????????? ??? 1953 ???
????? ????????
????? ????????? ??? 1955 ???
????? ???????
????? ????????? ??? 1959.
[5]
???????
[
???
]
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??? 1970
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??? 1980
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??? 1990
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??? 2000
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??? 2010
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??? 2020
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