@article{Bayaraa_2020, title={Preface - v.51}, volume={51}, url={https://www.mongoliajol.info/index.php/MGS/article/view/1456}, DOI={10.5564/mgs.v51i0.1456}, abstractNote={<p>No abstract in English</p>}, journal={Mongolian Geoscientist}, author={Bayaraa, Batkhishig}, year={2020}, month={Dec.}, pages={i} }