S. A. Shevelev, I. L. Dalinger, V. I. Gulevskaya, T. I. Cherkasova, V. M. Vinogradov, B. I. Ugrak, A. M. Starosotnikov, “Synthesis of mesoionic 3-aryl(hetaryl)-1,2,3,4-oxatriazol-5-ones b based on N-aryl-and N-hetarylhydrazones of bromonitroformaldehyde”, Chem Heterocycl Compd, 35:3 (1999), 363
I. L. DALINGER, T. I. CHERKASOVA, S. A. SHEVELEV, “ChemInform Abstract: Synthesis of 4‐Diazo‐3,5‐dinitropyrazole and Characteristic Features of Its Behavior Towards Nucleophiles.”, ChemInform, 28:38 (1997)