X.-M. LI, F. ZHANG, L.-P. DU, and S.-S. ZHANG, “Synthesis and Crystal Structure of Ethyl 4-(4- Nitrobenzamido)-3-(N-methyl-4-nitrobenzamido)- benzoate Monohydrate”, ajc, vol. 19, no. 5, pp. 3923–3928, Mar. 2010.