A. Arauzo, J. Rubín, L. Badía-Romano, J. Luzón, F. Luis, E. Burzurí, and J. Bartolomé, Very low-temperature magnetic relaxation processes of “butterfly” {Fe₃TbO₂} molecules, Low Temp. Phys. 52, (2026) [Fiz. Nyzk. Temp. 52, 941–951, (2026)].