TY  - RPRT
TI  - When does causality constrain the monopole abundance?
AU  - TW Kibble
AU  - EJ Weinberg
PY  - 1991
DO  - 10.1103/physrevd.43.3188
UR  - https://pubmed.ncbi.nlm.nih.gov/10013274/
ID  - 10013274
ER  -