TY  - RPRT
TI  - Variational study of dissipative two-state systems.
AU  - Y Shi
AU  - H Chen
AU  - X Wu
PY  - 1994
DO  - 10.1103/physrevb.49.2931
UR  - https://pubmed.ncbi.nlm.nih.gov/10011134/
ID  - 10011134
ER  -