?'???? ?'???? ??? ???? ????, ???? ????? ?????? ????? , ???? ?????? ??? ????? ? ??? ????? . ?'???? ??? ????, ??? ???? ????? ???? " ????? " ????? ???? ??????. ???? ???? ???????? ??????? ????????? ????? ????????? ?? ?????? ??????? . ?'???? ??? ????? ??? ????? ????? ?? ?????, ??? ?????? ??????, ??? ?????? ???? ?????? ? ????? ????????.

???? 1919 , ???? ???? ???? ???????? ??????? ????????? ??????? ??????? ????????, ???? ?'???? ?? ???? ?????? " ??????? ??????? ", ?????? ?? ????? ???? ?????? ????? ???? ?????. ????? ???? ?-30 , ????? ?'???? ???? ?? ????? ????? ???? ????? ????? ???? ????? ????? ???? ????? ?????? ???? ??? ??. ??? ????? ????? ????? ??????, ????????? ????, " ????? ???? " ( 1931 ) ?" ????? ???????? " ( 1936 ), ???? ?? ????? ?????????. ? ???? ?-40 ??? ?'???? ????? ?? ??????? ????????? ??????? ????????? ? ????? " ???????? ????? " ???? 1940 , ??? ?'???? ??????? ???? ??????? ? ?????????? ?? ?????? ? ???? ?-30 ?? ???? ?-20 , ????? ??? ????? ? ???????? . ?'???? ?????? ?????? ? ???????? ??? ??? ????? ?????? ??????? ?? ???? ????? ???? ????? ????, ??? ????? ??? ?????????? ??? ????? ??? ??? ???? ? ?????? .

????? ??????? ??? ?'???? ?????? ????, ??? ????? ???? ????? , ????? ????? ????? ???? ?????? ? ?????? ???? 1971 , ??? ???? ???? ?????? ?????? ?????? ? ?????? ???? 1972 , ??? ???? ???? ???? "???? ??????? ???????" ????? ????, ??? ???? ?? ??? ?? ?'???? ??? ???? 1972. ???? 1975 , ????? ??'???? ???? ???? ( ?? ), ???? ? ???? ???????? ??????? .