?? ??? ?? 3?? ??? ??????? ??? ??? ?? ‘??? ????’ ????? ????. ????????? ???? ‘??? ??’(?????), ??? ‘????’(???), ???? ‘? ???’(????)? ?? ??? ?????? ??? ?? ???? ??? ????? 1? ???.
1966? ??? ??? ????? ?????? ?? 3? ??? ?? ?? ??? ??? ???? ‘??? ?????’? ??? ? ? ???? ???? ??? ?? ????. ‘?? ????? ?????’ ‘BIB?’? ?? ?? 3? ??? ??? ???.