TY  - RPRT
TI  - Nonunique solution to the Schwinger-Dyson equations.
AU  - CM Bender
AU  - F Cooper
AU  - LM Simmons
PY  - 1989
DO  - 10.1103/physrevd.39.2343
UR  - https://pubmed.ncbi.nlm.nih.gov/9959916/
ID  - 9959916
ER  -