TY  - RPRT
TI  - Large-Nc higher-order weak chiral Lagrangians coupled to external electromagnetic fields: Applications to radiative kaon decays.
AU  - HY Cheng
PY  - 1990
DO  - 10.1103/physrevd.42.72
UR  - https://pubmed.ncbi.nlm.nih.gov/10012698/
ID  - 10012698
ER  -