?. ??, ?. , ?. ??@bullets, ?. , ?. et al., ?s ?? t?r? ?? s?????t??? ????r??? ?r? ??tr????? ????? ?t ?s t??s ??????t t? r??? ?? ? s?????t?r t??t ??? ?r????? t?? r???t tr???s ??t ??t? ? ??? ???r?????r ?st???t???? s??? ?s ?r???t?? ?? t?? ????r?? ?r????t???? ????? ?r?????s ? ??rs?t??? s?????t??? t?????t t? st??? t?? ???????r ?? ??r???s???? ??str???t?? s?st??s ???? ?r??s? ?????s? ?r ???r?t?????r s?st??s? ????r?? ?????s s?????t?? ??t? tr??s??rs ??? s?????t?? ?????t?t???s? ???r???r?? ??? ??r??t r?????r ???? t? t?? P???? t?r???s ??? t? ?? ??str??t?? ?s ????? ??????s?? ?? s?? ?P?s ?r ?P?s ??s t? ?? ????? ?s ?? ??t??? ??t? ?r???ss??? ?s ???? ??? ?? ??t??? ?P? ?s ????ss?r??? ????????? ?? s?????t??? ???????s? ??st? s???? s???????rs ??? ?s? r??t??? st?t?st??s t? t??? s????????? ????s???s? t?