Yu. I. Boyko, R. V. Vovk, B. V. Grinyov, and V. F. Korshak, Electrical superconductivity of a carbon compound formed by a one-electron covalent bond of atoms, Low Temp. Phys. 52, (2026) [Fiz. Nyzk. Temp. 52, 494–496, (2026)].