TY  - RPRT
TI  - Comment on "Undetermined-constant method in the boson Green's-function theory"
AU  - EB Brown
PY  - 1991
DO  - 10.1103/physreva.43.4544
UR  - https://pubmed.ncbi.nlm.nih.gov/9905563/
ID  - 9905563
ER  -