Mangal, A., P. S. Paul, A. K. Dash, and R. M. Bhattacharjee. “Role of Convergence Behaviour for Superior Recovery of Thick Coal Seams in Underground Mines by Blasting Gallery”. Journal of Mines, Metals and Fuels, vol. 64, no. 4, Oct. 2022, pp. 63-73, http://informaticsjournals.com/index.php/jmmf/article/view/31470.