(https://www.slideshare.net/williamhowell21000)???? ? ??????????????? ?????? ??? ?????? ? ????? ???????? ?????? ?? ?????? ????? ? ?????????????? ???????? ??????? ?????????? ??????????? ?? ??????????, ???????????? ????? ?????? ??? ????????????? ??????? ??????? ?????? ????????? ????. ????????? ?????????? ???????, ?? ?? ?????? ??????, ?????? ?? ??????? ????? ?????????? ????????? ????????... https://hector5b83b.wikirecognition.com/1113807/