For citations:

Dvoinikova A.V., Gicaev A.A. EXTRACTING OIL FROM THE SLUDGE MICROMETALLIC MINIMIZING THE IMPACT OF HEAVY METALSON THE ENVIRONMENTAL OBJECTS. Oil and Gas Studies. 2017;(5):122-124. (In Russ.) https://doi.org/10.31660/0445-0108-2017-5-122-124