TY  - RPRT
TI  - Positronium at surfaces.
AU  - PM Platzman
AU  - N Tzoar
PY  - 1986
DO  - 10.1103/physrevb.33.5900
UR  - https://pubmed.ncbi.nlm.nih.gov/9939122/
ID  - 9939122
ER  -