Reshetnikov Michae V. RussiaSaratovSaratov State University, geological faculty, department of geology and geochemistry of fossil fuel, LLC “Geosystems”, Saratovканд. геогр. наук.rmv85@list.r Author's articles ПРИМЕНЕНИЕ МЕТОДА ИЗМЕРЕНИЯ МАГНИТНОЙ ВОСПРИИМЧИВОСТИ ДЛЯ ВЫДЕЛЕНИЯ АРЕАЛОВ ТЕХНОГЕННОГО ЗАГРЯЗНЕНИЯ ПОЧВ ГОРОДА УЛЬЯНОВСКА Microbiological Indication of Soil above the Underground Storage of Natural Gas A Study of Iron-oxidizing Microorganisms for Possible Use in Biotechnology of Water Purification