TY  - RPRT
TI  - Multiple-time observables in quantum theory.
AU  - E Cohen
AU  - A Peres
PY  - 1985
DO  - 10.1103/physrevd.31.1525
UR  - https://pubmed.ncbi.nlm.nih.gov/9955867/
ID  - 9955867
ER  -