I.E. Kulbalina, B.K. Kuspanova, А.А.Kopasheva, L.K. Madieva и R.N. Nasirov 2019. FEATURES OF DISTRIBUTION OF THE PARAMAGNETIC CENTERS ON THE AREA OF THE EMBA REGION OIL DEPOSITS. Academic Scientific Journal of Chemistry. 4 (авг. 2019), 49–52.