? ????????PFS, ??? ??? ??? ????????? ??? ???????? ????????????? ????????? ?????????????????????????? ??? ?????, ?????????? ??? ?????? ??? ?? 1991.?? ?????, ????????, ??????? ?????? ????, ?????????? ?????????? ??? ???????????? ?????????????????? ???????? ??? ???????? ???????? ??????? (?????????, ?????????, ????)??? ??? ???? ???????????, ???? ??? ????????? ??? ?????????? ??? ??????? ???.