Modern Physics Letters B. Condensed Matter Physics, Statistical Physics, Atomic, Molecular and Optical Physics (Modern Phys. Lett. B) (20210101), 35, no.~33, Paper No 2150491, 20~pp. ISSN: 0217-9849 (print).eISSN: 1793-6640.
Modern Physics Letters B. Condensed Matter Physics, Statistical Physics, Atomic, Molecular and Optical Physics (Modern Phys. Lett. B) (20210101), 35, no.~34, Paper No 2150511, 14~pp. ISSN: 0217-9849 (print).eISSN: 1793-6640.