TY  - RPRT
TI  - Effective-potential expansion method for the many-body problem at finite temperatures. I. Basic formalism.
AU  - Y Takada
AU  - T Kita
PY  - 1990
DO  - 10.1103/physreva.42.3242
UR  - https://pubmed.ncbi.nlm.nih.gov/9904403/
ID  - 9904403
ER  -