TY  - RPRT
TI  - Implementation of a general multireference configuration interaction procedure with analytic gradients in a semiempirical context using the graphical unitary group approach.
AU  - Axel Koslowski
AU  - Michael E Beck
AU  - Walter Thiel
PY  - 2003
DO  - 10.1002/jcc.10210
UR  - https://pubmed.ncbi.nlm.nih.gov/12666163/
ID  - 12666163
ER  -