?? ???? ??? ??? ????? ???? ?? ??? ???? ? ??? ? ?? ?? ??? ??? ?????.“???????????????????????”???????????? ?????? ?? [???? ?? ??]?? ??? ??????.?? ??? ? ? ?? ? ?? ?????. ???? ??? ?? ?? ?? ??? ?? ???? ??? ????? ?.Both the bibliographical studying and the information selection in newspapers and in research and statistical establishments had been ele