Detailed Notes on ???? ??????? ???????? ??? ??????? ?????? ????? ??????? ?? ???????? ???? ?????? ?????? ?????? ?????? ????? ?????? ?? ?? ????? ????? ??? ?????? ??.?????? ??????? ????? ?? ???? ???????? ???????? ??????? ?? ???? ???????? ?????? ???????.??? ?????? ?? ???? ????? ??? ???? ?????? ??? ?????? ???? ???? ??? ????? ????? ?????? ????? ?????? ??