????? ????? ????? ???? ????? ?????? ???? ????? ?????? ??????? ??????? ???????? ?????? Production management ??? 1??? ?????? ??????? ??????? ???????? ???? ??????? ????????? ?? ???????? ???????????? ?????? ??????? ?????? :-1- ??? ??????? ??????? ???????? ?????? ????? ???????? ????? ?? ????? ? ????? ? ???????? ????? ????? 2-????? ?? ?????? ?????? ??