TY  - RPRT
TI  - Loop expansion in a functional space.
AU  - H Kröger
AU  - P Labelle
PY  - 1989
DO  - 10.1103/physrevd.40.495
UR  - https://pubmed.ncbi.nlm.nih.gov/10011839/
ID  - 10011839
ER  -