Nayak, Nirlipta Priyadarshini, Suhel Ahmed, and Ashar Imam. 2022. “Optimization Of Shovel-Dumper Combination In Lignite Mine: A Case Study”. Journal of Mines, Metals and Fuels 67 (11):507-8. http://informaticsjournals.com/index.php/jmmf/article/view/31666.