00621naa#a2200217#i#450# EN\INFRA-M\bibl\4679 20251220031503.6 2075-4094 20141105b2014####ek#y0engy0150####ca RUS RU The shungite as natural nanotechnologie (literature review) Journal article Moscow INFRA-M Academic Publishing LLC. 2014 0 с. Journal article local Khromushkin V. Platonov V. Chestnova Tatyana Khadartsev Aleksandr Kireev Semen zh-szf.ru