???? ????? ?????? ?????? ?????? ???? ???? ????? ???? 21 ?????? ??????. ???? ????? ?? ?????? ??????? ???????? ???? stabilitty ?????? ?? ????? . ????? ?????? ?? ???? ???? ????? ???? 21 ????? ?????? ??? ???????? ???????? . ??? ????? ?? ??? ????? ????? ???? ????? ?? ???? ????????? ?? ??????? ?????? ????? ?? ???? ????? ???????. ??? ?????, ?????… Read More