Tao, L., Ren, J., Liu, H., & Ni, T. (2013). Effects of Liquid-to-Solid Ratio and Reaction Time on Ammonia-Sulfuric Acid Pretreatment of Achnatherum splendens . Asian Journal of Chemistry, 25(7), 3549–3552. https://doi.org/10.14233/ajchem.2013.13597