TY  - RPRT
TI  - Hubbard model in the strong-coupling approximation.
AU  - BM Elrick
AU  - MD Kovarik
AU  - AE Jacobs
AU  - WG Macready
PY  - 1993
DO  - 10.1103/physrevb.47.6004
UR  - https://pubmed.ncbi.nlm.nih.gov/10004548/
ID  - 10004548
ER  -