TY  - RPRT
TI  - Quenched approximation in the quark model.
AU  - P Geiger
AU  - N Isgur
PY  - 1990
DO  - 10.1103/physrevd.41.1595
UR  - https://pubmed.ncbi.nlm.nih.gov/10012515/
ID  - 10012515
ER  -