TY  - RPRT
TI  - Ground state of a dissipative two-level system: Coupled-cluster approximation.
AU  - WH Wong
AU  - CF Lo
PY  - 1996
DO  - 10.1103/physrevb.54.12859
UR  - https://pubmed.ncbi.nlm.nih.gov/9985143/
ID  - 9985143
ER  -