4χ4 - An Overview

?????????? / ????????? ??????????? (???? ????? ??? ???? ???????????)? ???????? ????? ??? ????????? ????????????, ?? ??????? ???????, ?? ??? ???????? ?????? ??? ????????????? ?? ???? ???? ??????.????? ?????????: ???? ??????? ????. ?????????? ??? ?????????? ????????? ????? ??? ??? ?????????? ???? ???? ?? ??? ?????? ??? ?????????????? ???? ??? ???? ?

read more