00617naa#a2200169#i#4500001001400000005001700014100004100031102000700072200019500079210004600274215001000320608003700330700001600367700001900383700002500402856002000427EN\\bibl\751720241115063544.5##a20220516b2022####ek#y0engy0150####ca##aRU1#aPreparation of magnetite nanoparticles doped with molybdenum, tantalum, vanadium, and niobium and their catalytic properties by the example of the Michael reactioneConference article/thesis1#aKemerovocKemerovo State Universityd2022##a0 с.##aConference article/thesis2local#1aLarinagV V#1aDeryabinagE A#1aChupakhingEvgeny G.4#acheese.kemsu.ru