Galimzhan Duskaev, Il’shat Karimov, Georgy Levakhin, Baer Nurzhanov, Albert Rysaev and Hamdiya Dusaeva 2019. ECOLOGY OF RUMINAL MICROORGANISMS UNDER THE INFLUENCE OF QUERCUS CORTEX EXTRACT. GEOMATE Journal. 16, 55 (Mar. 2019), 59–66.