@article{19682148, title={Oxazolidone Derivatives of Hydroxyamino Acids. V. New Synthesis of threo- and erythro-β-Hydroxy-DL-aspartic Acids}, author={Toshishige Inui and Yoshimoto Ohta and Toshiaki Ujike and Hakuji Katsura and Takeo Kaneko}, journal={Bulletin of the Chemical Society of Japan}, volume={41}, number={9}, pages={2148-2150}, year={1968}, doi={10.1246/bcsj.41.2148} }