TY  - RPRT
TI  - Extended projector method: Application to Jahn-Teller and pseudo-Jahn-Teller systems.
AU  - M Vanhimbeeck
AU  - De Raedt H
AU  - D Schoemaker
PY  - 1988
DO  - 10.1103/physreva.38.5021
UR  - https://pubmed.ncbi.nlm.nih.gov/9900221/
ID  - 9900221
ER  -