For citations:

Chatterjee A., Smolkina M.O., Popov I.Y. Persistent current in a chain of two Holstein–Hubbard rings in the presence of Rashba spin-orbit interaction. Nanosystems: Physics, Chemistry, Mathematics. 2019;10(1):50-62. https://doi.org/10.17586/2220-8054-2019-10-1-50-62