TY  - RPRT
TI  - Effective forces and rigorous variational principles.
AU  - BG Giraud
AU  - GY Vichniac
PY  - 1985
DO  - 10.1103/physreva.32.72
UR  - https://pubmed.ncbi.nlm.nih.gov/9896027/
ID  - 9896027
ER  -