00537nam#a2200169#i#450# EN\ACADEMUS PUBLISHING\book\1192 20201025043559.7 20190326d2019####ek#y0engy0150####ca ENG RU PROCESSING TECHNOLOGY OF UNIQUE RUSSIAN CARBON-BEARING ROCKS – SHUNGITE Monography San Francisco Academus Publishing 2019 150 с. Monography local Rafienko Vladimir Alekseevich Belimenko Vladislav Valer'evich academuspub.com