Geoelectrical Survey of Active Layer Depth in Urban and Mature Environments of Yamal RegionIvan Alekseev, Evgeny Abakumov, Luka Akimov and Lubov Vorona-SlivinskayaMATEC Web Conf., 170 (2018) 02024DOI: https://doi.org/10.1051/matecconf/201817002024