00491naa#a2200169#i#4500001001500000005001700015011001400032100004100046102000700087200008500094210004600179215001000225608002700235700001700262700002700279856001500306EN\\bibl\2333020241125141030.1##a2542-1840##a20180325b2018####ek#y0engy0150####ca##aRU1#aELEMENTS OF HEALTH-PRESERVING TECHNOLOGIES AT CHEMISTRY CLASSESeJournal article1#aKemerovocKemerovo State Universityd2018##a4 с.##aJournal article2local#1aRakirgN. G.#1aCheremnovagTatiana V.4#ajsocnet.ru