??? ????? ??? ??? ??????? ???? ????? ????? ????? ??? ?????? ??????? ???? ??????? . ???? ??? ???? ??????? ????????? ? ???? ????? ????? ?????? ????? ???? ??????. ????????? ?????? ??????? 1973 ??? ??? ????????? ? ?????? ?? ??? 1973? ??? ???? ??????? ????? ????? ??? ? ???????. ??? ??? ????? ?????? ? ??????? ?????????. ???? ??? ????? ??????