Lian, Xiao, Xue-Xian Chen, Min Zi, and Li-Ming Yuan. 2015. “Direct TLC Optical Resolution of Two Sulphur-Containing DL-a-Amino Acids Using Vancomycin As Chiral Selector”. Asian Journal of Chemistry 27 (9):3370-72. https://doi.org/10.14233/ajchem.2015.18802.