Hong, B.Q., X.J. Wang, S.P. Zhan, and G.S. Yu. “Combined Pyrolysis and Steam Gasification of Hohhot Coal, China”. Asian Journal of Chemistry 25, no. 7 (February 4, 2013): 3583–3587. Accessed November 22, 2024. https://asianpubs.org/index.php/ajchem/article/view/25_7_12.