S. N. Konchenko, N. P. Gritsan, A. V. Lonchakov, U. Radius, A. V. Zibarev, “Isolation of the 2,1,3-benzothiadiazolidyl radical anion: X-ray structure and properties of a [K(THF)][C<sub>6</sub>H<sub>4</sub>N<sub>2</sub>S] salt”, Mendeleev Commun., 19:1 (2009), 7–9
