TY  - RPRT
TI  - Wormhole solution to the strong CP problem.
AU  - K Choi
AU  - R Holman
PY  - 1989
DO  - 10.1103/physrevlett.62.2575
UR  - https://pubmed.ncbi.nlm.nih.gov/10040026/
ID  - 10040026
ER  -