TY  - RPRT
TI  - Models with inverse-square exchange.
AU  - ZN Ha
AU  - FD Haldane
PY  - 1992
DO  - 10.1103/physrevb.46.9359
UR  - https://pubmed.ncbi.nlm.nih.gov/10002740/
ID  - 10002740
ER  -