?? ???? 4? ?? ?? ???? ?? ??????? ?? ?17? ???????(BIFF) ???? ??? ????? ?? ??.
??? 17??? ?? ???????? ??? ??? ???? ???? ??? ??? ???? ???, ???, ???, ???, ???, ???, ??, ???, ???, ???, ???, ???, ???, ???, ???, ???, ???, ???, ???, ???, ???, ????, ???, ???, ???, ???, ???, ??? ? ?? ???? ?? ???? ?? ????.
?? 13??? ???? ???? ?? ???? ??? ???? ???? ??? ??? ‘???’? ???? ??????? ??? ‘????’ ? 75?? 304?? ??? ?????? ??? ???? 37? ????? ????.