“Study of mineralogical variability of ferruginous quartzites of productive strata of the eastern wing of the Petrovsky synclinal fold with using diagram Mm-Mo” (2019) Visnyk of V. N. Karazin Kharkiv National University. Series Geology. Geography. Ecology, (50), pp. 54–62. doi:10.26565/2410-7360-2019-50-04.