TY  - RPRT
TI  - Direct instantons in QCD nucleon sum rules.
AU  - H Forkel
AU  - MK Banerjee
PY  - 1993
DO  - 10.1103/physrevlett.71.484
UR  - https://pubmed.ncbi.nlm.nih.gov/10055288/
ID  - 10055288
ER  -