TY  - RPRT
TI  - Missing particles and modes.
AU  - ES Ackleh
AU  - GD Mahan
PY  - 1994
DO  - 10.1103/physrevb.50.7272
UR  - https://pubmed.ncbi.nlm.nih.gov/9974701/
ID  - 9974701
ER  -