TY  - RPRT
TI  - Observer-dependent quantum vacua in curved space.
AU  - M Castagnino
AU  - R Ferraro
PY  - 1986
DO  - 10.1103/physrevd.34.497
UR  - https://pubmed.ncbi.nlm.nih.gov/9957167/
ID  - 9957167
ER  -