Togtokh, E., Sukhbaatar, C., Sandag, D., Zorigt, B., Dashdondog, G.-O., & Surenjav, E. (2025). Seasonal variation in groundwater quality along the Кherlen river valley. Mongolian Journal of Geography and Geoecology, 62(46), 109–117. https://doi.org/10.5564/mjgg.v62i46.4119