000 00293nam a2200109Ia 4500
005 20251007104431.0
008 251006s9999 xx 000 0 und d
245 0 _anauchno-tekhnicheskii progressi effektivnost....i.v. poakhlin
260 _a1ST ED | MOSKVA NAUKA
260 _c1973
942 _cBOK
999 _c7133
_d7133