S. Fan, J. Han, L. Jin, and S. Liu, “Improved Synthesis and Crystallographic Analysis of (E)-Ethyl 2-(Hydroxyimino)-3-(4-methoxyphenyl)-3-oxopropanoate and erythro-N-Acetyl-b-(4-methoxyphenyl)serine Ethyl Ester”, ajc, vol. 28, no. 1, pp. 18–22, Oct. 2015.