WET SYNTHESIS AND CHARACTERIZATION OF HYBRID NANOPOWDERS BASED ON OXYGEN-FREE GRAPHENE AND ZRO2 Article Afzal A.M., Trusova E.A., Titov D.D., Polikarpov K.V., Safronenko M.G., Kirichenko A.N. Advances in synthesis and complexing. РУДН. 2019. 60 p.