TY  - RPRT
TI  - Classification and JPG selection rules for weak currents.
AU  - EL Berger
AU  - HJ Lipkin
PY  - 1987
DO  - 10.1103/physrevlett.59.1394
UR  - https://pubmed.ncbi.nlm.nih.gov/10035223/
ID  - 10035223
ER  -