Guo, T. et al. 2013. Synthesis of 7-Azidofurazano[3,4-b]tetrazolopyrazine and Isomer’s Structure in Different Polarity Solvents. Asian Journal of Chemistry. 25, 9 (Aug. 2013), 4979–4982. DOI:https://doi.org/10.14233/ajchem.2013.14164.