TY  - RPRT
TI  - Comment on "Phase-difference operator"
AU  - DT Pegg
AU  - JA Vaccaro
PY  - 1995
DO  - 10.1103/physreva.51.859
UR  - https://pubmed.ncbi.nlm.nih.gov/9911651/
ID  - 9911651
ER  -