TY  - RPRT
TI  - Coupled-cluster approximation for spin lattices: Application to solid 3He.
AU  - M Roger
AU  - JH Hetherington
PY  - 1990
DO  - 10.1103/physrevb.41.200
UR  - https://pubmed.ncbi.nlm.nih.gov/9992756/
ID  - 9992756
ER  -