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