TY  - RPRT
TI  - Topology, decoherence, and semiclassical gravity.
AU  - C Kiefer
PY  - 1993
DO  - 10.1103/physrevd.47.5414
UR  - https://pubmed.ncbi.nlm.nih.gov/10015565/
ID  - 10015565
ER  -