Sadual, R., et al. “Catalytic Conversion of Lignin: Studies on Oxidation of Lignin Model Phenolic Monomer over CoMCM-41 and CoMCM-48 Catalysts”. Asian Journal of Chemistry, vol. 30, no. 2, Dec. 2017, pp. 434-42, doi:10.14233/ajchem.2018.21098.