@article{Bayaraa_2020, title={Preface Vol.50}, volume={50}, url={https://www.mongoliajol.info/index.php/MGS/article/view/1324}, DOI={10.5564/mgs.v50i0.1324}, abstractNote={<p>[No abstract available]</p>}, journal={Mongolian Geoscientist}, author={Bayaraa, Batkhishig}, year={2020}, month={Jun.}, pages={1} }