Bi1, Yanhong, et al. “Using Co-Solvent Approach to Improve the Performance of Lipase from Thermomyces Lanuginosus in Preparation of 5’-O-Palmitoyl-6-Azauridine”. Asian Journal of Chemistry, vol. 25, no. 18, Dec. 2013, pp. 10273-6, doi:10.14233/ajchem.2013.15273.